SFI SYSTEM, Diagnostic DTC:P1603 and P1605
| DTC Code | DTC Name |
|---|---|
| P1603 | Engine Stall History |
| P1605 | Rough Idling |
DESCRIPTION
P1603 (for CVT Models)
After starting the engine, this DTC is stored when the engine stops without the ignition switch being operated.
Using the GTS, the conditions present when the DTC was stored can be confirmed by referring to the freeze frame data. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
It is necessary to check if the vehicle has run out of fuel before performing troubleshooting, as this DTC is also stored when the engine stalls due to running out of fuel.
P1605
This DTC is stored if the engine speed drops below the set speed.
Using the GTS, the conditions present when the DTC was stored can be confirmed by referring to the freeze frame data. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
It is necessary to check if the vehicle ran out of fuel before performing troubleshooting, as this DTC is also stored when idling is unstable due to running out of fuel.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
|---|---|---|---|---|---|
P1603 |
Engine Stall History |
After monitoring for startability problems (P1604) finishes and 5 seconds or more elapse after starting the engine, with the engine running, the engine stops (the engine speed drops to 200 rpm or less) without the ignition switch being operated for 0.5 seconds or more (1 trip detection logic). |
|
- |
DTC stored |
P1605 |
Rough Idling |
After 5 seconds or more elapse after starting the engine, with the engine running, the engine speed drops to 400 rpm or less (1 trip detection logic). |
|
- |
DTC stored |
CAUTION / NOTICE / HINT
In contrast to normal malfunction diagnosis for components, circuits and systems, DTCs P1603 and P1605 are used to determine the malfunctioning area from the problem symptoms and freeze frame data when the user mentions problems such as engine stall.
As these DTCs can be stored as a result of certain user actions, even if these DTCs are output, if the customer makes no mention of problems, clear these DTCs without performing any troubleshooting and return the vehicle to the customer.
If any other DTCs are output, perform troubleshooting for those DTCs first.
Use any information from the customer problem analysis about the condition of the vehicle at the time when the problem occurred (how the engine stopped, conditions when the engine was restarted, etc.) as a reference.
Symptom
Suspected Area
Engine vibration occurs and engine stops
Air fuel ratio abnormal
Engine stops with no engine vibration
Ignition system, injection stoppage, high load from external parts
Engine can be started with accelerator pedal depressed
Insufficient air volume
Rough idling after engine started
Air fuel ratio abnormal, abnormal combustion
Read freeze frame data using the GTS. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
When confirming the freeze frame data, be sure to check all 5 sets of freeze frame data (Click here).
When DTC P1603 (Engine Stall History) is stored, DTC P1605 (Rough Idling) is also stored. When confirming freeze frame data, check DTC P1605. The ECM stores DTC P1605 first. Therefore, 5 sets of freeze frame data can be confirmed through DTC P1605, enabling the technician to obtain more information.
When confirming freeze frame data, if there are multiple items related to the cause of the malfunction, perform troubleshooting for all related items.
Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N (neutral)) and compare these data with the freeze frame data.
Inspections take into account the fact that the malfunction may not have reoccurred and place emphasis on checking the vehicle conditions present at the time when the malfunction occurred.
When performing inspections, jiggle the relevant wire harnesses and connectors in an attempt to reproduce malfunctions that do not always occur.
Inspection flow
Using freeze frame data, narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred.
P1603:
1:
If the engine stalled when the intake air volume was low (during idling or deceleration), there may be a decrease in torque due to an incorrect air fuel ratio, etc.
If the engine stalled when the intake air volume was high (during driving or acceleration), there may be a major malfunction such as continuous misfire due to ignition stoppage, fuel injection stoppage, etc. and the torque drops to zero.
2:
If the engine speed decreased slowly, there may have been a decrease in torque due to an air fuel ratio that was incorrect (by approximately 20 to 30%), etc.
If the engine speed decreased rapidly, there may have been a malfunction such as when the engine misfires almost continuously due to ignition stoppage, fuel injection stoppage, etc., or when the external load increases due to an external part malfunctioning.
3:
If the air fuel ratio is abnormal, there may have been an intake air leak, sensor malfunction, or fuel supply problem.
If the vehicle was normal, the air volume may have been insufficient or the ignition timing may have been incorrect.
P1603 inspection flow: Narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred (freeze frame data).
Vehicle State |
Engine Speed |
Suspected Area |
Primary Parts to Inspect |
Procedure |
|
|---|---|---|---|---|---|
Idling or decelerating |
Slowly decreases and engine stalls |
Ignition system abnormal |
Igniter abnormal |
|
10, 38, 53 |
Air fuel ratio abnormal |
Air suction |
|
5 to 9 |
||
Sensor malfunction (value from sensor too lean) |
|
11 to 23 |
|||
Sensor malfunction (value from sensor too rich) |
39 to 51 |
||||
Fuel supply problem |
|
24 to 37 |
|||
Intake air volume insufficient |
Problem with air passage |
|
54 to 56 |
||
Excessive valve overlap |
|
57 to 60 |
|||
Ignition timing incorrect |
Does not operate as expected |
|
61 to 65 |
||
Rapidly decreases and engine stalls |
Ignition and injection stops (electrical system malfunction) |
Power temporarily cut |
|
66, 67 |
|
External part malfunctioning |
Increase in load |
|
68 to 71 |
||
Accelerating |
- |
Crankshaft position sensor or camshaft position sensor malfunction |
Power temporarily cut |
|
1 |
Mass air flow meter |
Foreign matter adhesion |
|
72 to 75 |
||
Ignition and injection stops (electrical system malfunction) |
Power temporarily cut |
|
76, 77 |
||
Fuel supply problem |
Fuel leak, clog |
|
78 to 82 |
||
P1605:
1:
If the engine speed decreased slowly, there may have been a decrease in torque due to an air fuel ratio that was incorrect (by approximately 20 to 30%), etc.
If the engine speed decreased rapidly, there may have been a malfunction such as when the engine misfires almost continuously due to ignition stoppage, fuel injection stoppage, etc., or when the external load increases due to an external part malfunctioning.
2:
If the air fuel ratio is abnormal, there may have been an intake air leak, sensor malfunction, or fuel supply problem.
If the vehicle was normal, the air volume may have been insufficient or the ignition timing may have been incorrect.
P1605 inspection flow: Narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred (freeze frame data).
Engine Speed |
Suspected Area |
Primary Parts to Inspect |
Procedure |
|
|---|---|---|---|---|
Slowly decreases |
Ignition system abnormal |
Igniter abnormal |
|
10, 38, 53 |
Air fuel ratio abnormal |
Air suction |
|
5 to 9 |
|
Sensor malfunction (value from sensor too lean) |
|
11 to 23 |
||
Sensor malfunction (value from sensor too rich) |
39 to 51 |
|||
Fuel supply problem |
|
24 to 37 |
||
Intake air volume insufficient |
Problem with air passage |
|
54 to 56 |
|
Excessive valve overlap |
|
57 to 60 |
||
Ignition timing incorrect |
Does not operate as expected |
|
61 to 65 |
|
Rapidly decreases |
Ignition and injection stops (electrical system malfunction) |
Power temporarily cut |
|
66, 67 |
External part malfunctioning |
Increase in load |
|
68 to 71 |
|
*1: for CVT Models
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
CHECK FOR ANY OTHER DTCS OUTPUT
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Powertrain > Engine and ECT > Trouble Codes
Read the DTCs (Click here).
Result
Result
Proceed to
Only DTC P1603 and/or P1605 is output
A
DTCs other than P1603 and/or P1605 are output
B
Tip:If any DTCs other than P1603 or P1605 are output, troubleshoot those DTCs first.
CHECK FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
OK
Immobiliser Fuel Cut is OFF.
Result
Result
Proceed to
Abnormal
A
Normal
B
B READ FREEZE FRAME DATAClick here
CHECK ENGINE IMMOBILISER SYSTEM
Connect the GTS to the DLC3.
Start the engine.
Idle the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Immobiliser Communication and Immobiliser Fuel Cut.
Powertrain > Engine and ECT > Data List
Tester Display
Immobiliser Communication
Immobiliser Fuel Cut
Check the Data List indication.
OK
Data List Item
GTS Display
Immobiliser Communication
ON
Immobiliser Fuel Cut
OFF
Result
Result
Proceed to
OK
A
NG (w/ Entry and Start System)
B
NG (w/o Entry and Start System)
C
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Problem Symptom
Freeze Frame Data Item for DTC P1605
Suspected Area
Proceed to
Closed Throttle Position SW
Engine Speed
Total of Short FT #1 and Long FT #1
When idling or decelerating, engine speed slowly decreases and engine stalls
All 5 sets of freeze frame data are ON
Decreases slowly*1
All 5 sets of freeze frame data are +15% or more*2
Air suction
Sensor malfunction (value from sensor too lean)
Fuel supply problem
A
At least 1 of the 5 sets of freeze frame data is -15% or less*3
Sensor malfunction (value from sensor too rich)
B
All 5 sets of freeze frame data are from -15% to +15%
Intake air volume insufficient
Ignition timing incorrect
C
When idling or decelerating, engine speed rapidly decreases and engine stalls
Decreases rapidly*1
-
Injection stoppage, ignition stoppage
Load from external parts
D
When accelerating or driving at constant speed and engine stalls*4
At least one is OFF
-
-
Sensor malfunction
Injection stoppage, ignition stoppage
Fuel supply problem
E
Tip:*1: A rapid decrease in engine speed may have been caused by an electrical malfunction in the shared wiring of all or multiple cylinders, an increase in load from external parts, etc. The engine speed is considered to have decreased rapidly if either of the following conditions applies.
Otherwise, the engine speed is considered to have decreased slowly.
(a) In the freeze frame data, the decrease in engine speed from #3 to #5 is 400 rpm or more.
(b) In the freeze frame data, the engine speed at #5 is 120 rpm or less.
If the vehicle speed is 15 km/h (9.3 mph) or less and the difference between the Engine Speed and SPD (NT) is 100 rpm or less, inspect the CVT. (Depending on the rate of vehicle deceleration, the engine speed may have decreased due to the CVT lock-up release being late.) (for CVT Models)
*2: When a DTC is stored, feedback compensation increases because the air-fuel ratio is determined to be lean.
*3: When a DTC is stored, feedback compensation decreases because the air-fuel ratio is determined to be rich.
*4: This item should be checked when DTC P1603 is output and is not necessary to check when only P1605 is output.
B CHECK IGNITION SYSTEMClick here
C CHECK IGNITION SYSTEMClick here
D CHECK TERMINAL VOLTAGE (#10, #20, #30 AND #40)Click here
E CHECK FREEZE FRAME DATAClick here
CHECK INTAKE SYSTEM
Check for air leakage in the intake system [vacuum hose disconnection, cracks, damaged gaskets, etc.] (Click here).
Tip:If the accelerator pedal is released after racing the engine, the inspection is easier to perform because the vacuum inside the intake pipes increases and the air suction noise becomes louder.
If Short FT #1 and Long FT #1 are largely different from the normal values when idling (the intake air volume is small) and almost the same as the normal values when racing the engine (the intake air volume is high), air leakage may be present.
OK
There is no air suction.
Tip:Perform "Inspection After Repair" after repairing or replacing the intake system (Click here).
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE INTAKE SYSTEM
CHECK PURGE VSV
-
Disconnect the fuel vapor feed hose (on the canister side) of the purge VSV.
Start the engine.
Idle the engine.
Disconnect the connector of the purge VSV.
Check if air flows through the purge VSV.
OK
Air does not flow.
Tip:When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs (Click here).
Result
Proceed to
OK
NG
-
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Suspected Area
Proceed to
Stop Light Switch
At least 1 of the 5 sets of freeze frame data is ON
Air suction from brake booster assembly
A
All 5 sets of freeze frame data are OFF
-
B
B CHECK IGNITION SYSTEMClick here
READ VALUE USING GTS (SHORT FT #1)
-
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Start the engine and warm it up until the engine coolant temperature stabilizes.
Tip:The A/C switch and all accessory switches should be off.
Idle the engine.
Using the GTS, read the value of Short FT #1 in the Data List while depressing the brake pedal.
Powertrain > Engine and ECT > Data List
Tester Display
Short FT #1
Standard
Short FT #1 changes by +10% or less.
Result
Result
Proceed to
OK
A
NG (for LHD)
B
NG (for RHD)
C
Tip:When air leakage from the brake booster assembly is present, the feedback compensation increases because the air fuel ratio becomes lean.
-
PERFORM DRIVE TEST
Connect the GTS to the DLC3.
Start the engine and warm it up until the engine coolant temperature stabilizes.
Tip:The A/C switch and all accessory switches should be off.
Idle the engine.
Turn the GTS on.
Using the GTS, read the value of Short FT #1 and Long FT #1 in the Data List.
Powertrain > Engine and ECT > Data List
Tester Display
Short FT #1
Long FT #1
Standard
Data List
Condition
Specified Condition
Short FT #1 + Long FT #1
The conditions of the vehicle are matched to those present when the problem occurs
-15 to +15%
Result
Result
Proceed to
OK
A
NG (for LHD)
B
NG (for RHD)
C
CHECK IGNITION SYSTEM
Perform ignition system On-vehicle Inspection (Click here).
Tip:Perform "Inspection After Repairs" after repairing or replacing the ignition system (Click here).
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Suspected Area
Proceed to
Calculate Load
Less than 90% of the current value of the vehicle*1
Mass air flow meter sub-assembly
A
AFS Voltage B1S1
3.3 V or higher*2
Air fuel ratio sensor
Wire harness or connector
B
Tip:*1: If the mass air flow meter sub-assembly is malfunctioning and incorrectly measures the intake air volume to be less than the actual volume, the freeze frame data will show a low engine load value.
*2: If the air fuel ratio sensor is malfunctioning and constantly outputs a value indicating the air fuel ratio is lean, the actual air fuel ratio will become rich and the engine may stall.
B PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)Click here
CHECK MASS AIR FLOW METER SUB-ASSEMBLY
Remove the mass air flow meter sub-assembly.
Check for foreign matter in the air flow passage of the mass air flow meter sub-assembly.
Result
Result
Proceed to
Visible foreign matter is not present
A
Visible foreign matter is present
B
Tip:Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly (Click here).
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
Check the harnesses and connectors, referring to DTC P0102 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
PERFORM DRIVE TEST
Connect the GTS to the DLC3.
Start the engine and warm it up until the engine coolant temperature stabilizes.
Tip:The A/C switch and all accessory switches should be off.
Idle the engine.
Turn the GTS on.
Using the GTS, read the value of Calculate Load in the Data List.
Powertrain > Engine and ECT > Data List
Tester Display
Calculate Load
Standard
Data List
Specified Condition
Calculate Load
90 to 110% of the current value of the vehicle
Result
Result
Proceed to
Abnormal
A
Normal
B
Tip:Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly (Click here).
B READ FREEZE FRAME DATAClick here
PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)
-
Connect the GTS to the DLC3.
Start the engine, turn off all accessory switches and warm up the engine until the engine coolant temperature stabilizes.
Tip:The A/C switch and all accessory switches should be off.
Idle the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor / All Data / AFS Voltage B1S1.
Powertrain > Engine and ECT > Active Test
Active Test Display
Control the Injection Volume for A/F Sensor
Data List Display
AFS Voltage B1S1
Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume.
Standard
GTS Display
Specified Condition
Control the Injection Volume for A/F Sensor (12.5%)
Air fuel ratio sensor output voltage is below 3.1 V
Control the Injection Volume for A/F Sensor (-12.5%)
Air fuel ratio sensor output voltage is higher than 3.4 V
Result
Result
Proceed to
Abnormal
A
Normal
B
Tip:The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.
B READ FREEZE FRAME DATAClick here
-
CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR FUEL RATIO SENSOR)
Check the harnesses and connectors, referring to DTC P0031 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - EFI-MAIN NO.1 RELAY)
CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM)
Check the harnesses and connectors, referring to DTC P2237 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Proceed to
Initial Engine Coolant Temp, Ambient Temp for A/C, Initial Intake Air Temp
Difference in temperature between each item is less than 10°C (18°F)*1
A
Difference in temperature between each item is 10°C (18°F) or more*2
B
Tip:*1: A long time had elapsed after stopping the engine.
*2: A long time had not elapsed after stopping the engine.
B READ FREEZE FRAME DATAClick here
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Suspected Area
Proceed to
Initial Engine Coolant Temp, Coolant Temp, Engine Run Time
Range A
Engine coolant temperature sensor
Thermostat
A
Range B
Engine coolant temperature sensor
B
Range C
-
C
Tip:This step is not directly related to engine stall.
INSPECT THERMOSTAT
Inspect the thermostat (Click here).
Result
Result
Proceed to
Abnormal
A
Normal
B
B INSPECT ENGINE COOLANT TEMPERATURE SENSORClick here
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Suspected Area
Proceed to
Coolant Temp
120°C (248°F) or higher
Engine coolant temperature sensor
A
Engine coolant temperature is lower than outside temperature* by 15°C (27°F) or more
Engine coolant temperature sensor
Values are other than above
-
B
Tip:*: Use an actual outside temperature estimated from the Initial Intake Air, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected.
B READ FREEZE FRAME DATAClick here
INSPECT ENGINE COOLANT TEMPERATURE SENSOR
Inspect the engine coolant temperature sensor (Click here).
Result
Result
Proceed to
Normal
A
Abnormal
B
Tip:Perform "Inspection After Repair" after replacing the engine coolant temperature sensor (Click here).
CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM)
Disconnect the engine coolant temperature sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
B4-2 - B75-93 (THW)
Always
Below 1 Ω
B4-1 - B75-94 (ETHW)
Always
Below 1 Ω
B4-2 or B75-93 (THW) - Body ground
Always
10 kΩ or higher
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Suspected Area
Proceed to
EVAP (Purge) VSV
At least 1 of the 5 sets of freeze frame data is not 0%
Purge VSV
A
All 5 sets of freeze frame data are 0%
-
B
Tip:If the purge VSV is stuck closed, air fuel ratio compensation by the purge VSV is incorrectly adjusted, and then the air fuel ratio becomes lean and the engine may stall.
B PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP/SPEED)Click here
PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VSV FOR EVAP CONTROL)
-
*a
VSV ON
*b
VSV OFF
Disconnect the fuel vapor feed hose (on the canister side) of the purge VSV.
Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Evap Control.
Powertrain > Engine and ECT > Active Test
Tester Display
Activate the VSV for Evap Control
When purge VSV is operated using the GTS, check whether the port of the purge VSV applies suction your finger.
OK
GTS Operation
Specified Condition
ON
Purge VSV port applies suction to finger
OFF
Purge VSV port applies no suction to finger
Result
Result
Proceed to
Abnormal
A
Normal
B
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
B PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP/SPEED)Click here
-
INSPECT PURGE VSV
Inspect the purge VSV (Click here).
Result
Proceed to
OK
NG
CHECK TERMINAL VOLTAGE (POWER SOURCE OF PURGE VSV)
Check the harness and connectors, referring to DTC P0443 procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR (PURGE VSV - EFI-MAIN NO.1 RELAY)
CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)
Check the harness and connectors, referring to DTC P0443 procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
CLEAR DTC
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (Click here).
Powertrain > Engine and ECT > Clear DTCs
Result
Proceed to
NEXT
READ VALUE USING GTS (EVAP (PURGE) VSV)
Connect the GTS to the DLC3.
Start the engine and warm it up until the engine coolant temperature stabilizes.
Tip:The A/C switch and all accessory switches should be off.
Idle the engine for 15 minutes or more.
Turn the GTS on.
Using the GTS, read the value of EVAP (Purge) VSV in the Data List.
Powertrain > Engine and ECT > Data List
Tester Display
EVAP (Purge) VSV
Standard
Data List
Specified Condition
EVAP (Purge) VSV
Value other than 0% is displayed
Result
Result
Proceed to
Abnormal
A
Normal
B
PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VSV FOR EVAP CONTROL)
-
*a
VSV ON
*b
VSV OFF
Disconnect the fuel vapor feed hose (on the canister side) of the purge VSV.
Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Evap Control.
Powertrain > Engine and ECT > Active Test
Tester Display
Activate the VSV for Evap Control
When purge VSV is operated using the GTS, check whether the port of the purge VSV applies suction your finger.
OK
GTS Operation
Specified Condition
ON
Purge VSV port applies suction to finger
OFF
Purge VSV port applies no suction to finger
Result
Result
Proceed to
Abnormal
A
Normal
B
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
-
CHECK CONNECTOR CONNECTION CONDITION (ECM)
Check the ECM connector connection condition.
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG RECONNECT CONNECTOR CORRECTLY
PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP/SPEED)
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump/Speed.
Powertrain > Engine and ECT > Active Test
Tester Display
Control the Fuel Pump / Speed
Check whether the fuel pump operating sound occurs when performing the Active Test on the GTS.
OK
GTS Operation
Specified Condition
ON
Operating sound heard
OFF
Operating sound not heard
Result
Result
Proceed to
Abnormal
A
Normal
B
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
While performing the Active Test, make sure that there is no fuel leakage from the pipes, no signs that fuel has leaked, and no fuel smell.
If the fuel pump operating noise is abnormal, proceed to step 34.
B CHECK FUEL SYSTEMClick here
INSPECT FUEL PUMP
Inspect the fuel pump (Click here).
Tip:Perform "Inspection After Repair" after replacing the fuel pump (Click here).
Result
Proceed to
OK
NG
CHECK FUEL SYSTEM
Check the fuel system.
Check the fuel pump operation.
Check the fuel leaks.
Check the fuel pressure.
Perform the Active Test [Control the All Cylinders Fuel Cut].
Tip:For the fuel system On-vehicle Inspection, refer to the following procedures (Click here).
Result
Result
Proceed to
Abnormal
A
Normal
B
CHECK FUEL SYSTEM
Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter and inside the fuel tank), and for signs that the fuel pump was stuck.
Result
Result
Proceed to
There is no foreign matter and no signs that fuel pump was stuck
A
There is foreign matter or signs that fuel pump was stuck
B
Tip:If there is foreign matter such as iron particles on the fuel pump, fuel filter or fuel tank, remove the foreign matter.
B REPAIR OR REPLACE FUEL SYSTEM
CHECK FUEL SYSTEM
Check the fuel system.
Check the fuel pump operation.
Check the fuel leaks.
Check the fuel pressure.
Perform the Active Test [Control the All Cylinders Fuel Cut].
Tip:For the fuel system On-vehicle Inspection, refer to the following procedures (Click here).
Perform "Inspection After Repair" after replacing the fuel pump (Click here).
Result
Proceed to
OK
NG
OK END
NG REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
CHECK IGNITION SYSTEM
Perform ignition system On-vehicle Inspection (Click here).
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Suspected Area
Proceed to
Calculate Load
110% or more of the current value of the vehicle*1
Mass air flow meter sub-assembly
A
AFS Voltage B1S1
Below 3.3 V*2
Air fuel ratio sensor
harness or connector
B
Both freeze frame data items listed above
Values are other than above
-
C
Tip:*1: If the mass air flow meter sub-assembly is malfunctioning and incorrectly measures the intake air volume to be more than the actual volume of air flowing through the intake manifold, the freeze frame data will show a high engine load value.
*2: As the air fuel ratio sensor output is low before the sensor warms up, the value at that time cannot be used for diagnosis. If the air fuel ratio sensor is malfunctioning and constantly outputs a value indicating the air fuel ratio is rich, the actual air fuel ratio will become lean and the engine may stall.
B PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)Click here
C READ FREEZE FRAME DATAClick here
INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
Remove the mass air flow meter sub-assembly.
Check for foreign matter in the air flow passage of the mass air flow meter sub-assembly.
Result
Result
Proceed to
Visible foreign matter is not present
A
Visible foreign matter is present
B
Tip:Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly (Click here).
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
Check the harnesses and connectors, referring to DTC P0102 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
PERFORM DRIVE TEST
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Start the engine and warm it up until the engine coolant temperature stabilizes.
Tip:The A/C switch and all accessory switches should be off.
Idle the engine.
Using the GTS, read the value of Calculate Load in the Data List.
Powertrain > Engine and ECT > Data List
Tester Display
Calculate Load
Standard
Data List
Specified Condition
Calculate Load
90 to 110% of the current value of the vehicle
Tip:Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly (Click here).
Result
Proceed to
OK
NG
PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)
-
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Start the engine, turn off all accessory switches and warm up the engine until the engine coolant temperature stabilizes.
Tip:The A/C switch and all accessory switches should be off.
Idle the engine.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor / All Data / AFS B1S1.
Powertrain > Engine and ECT > Active Test
Active Test Display
Control the Injection Volume for A/F Sensor
Data List Display
AFS Voltage B1S1
Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume.
Standard
Tester Display
Specified Condition
Control the Injection Volume for A/F Sensor (12.5%)
Air fuel ratio sensor output voltage is below 3.1 V
Control the Injection Volume for A/F Sensor (-12.5%)
Air fuel ratio sensor output voltage is higher than 3.4 V
Result
Result
Proceed to
Abnormal
A
Normal
B
Tip:The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.
B READ FREEZE FRAME DATAClick here
-
CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR FUEL RATIO SENSOR)
Check the harnesses and connectors, referring to DTC P0031 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - EFI-MAIN NO.1 RELAY)
CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM)
Check the harnesses and connectors, referring to DTC P2237 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Proceed to
Initial Engine Coolant Temp, Ambient Temp for A/C, Initial Intake Air Temp
Difference in temperature between each item is less than 10°C (18°F)*1
A
Difference in temperature between each item is 10°C (18°F) or more*2
B
Tip:*1: A long time had elapsed after stopping the engine.
*2: A long time had not elapsed after stopping the engine.
B READ FREEZE FRAME DATAClick here
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Suspected Area
Proceed to
Initial Engine Coolant Temp, Coolant Temp, Engine Run Time
Range A
Engine coolant temperature sensor
Thermostat
A
Range B
Engine coolant temperature
B
Range C
-
C
Tip:This step is not directly related to engine stall.
INSPECT THERMOSTAT
Inspect the thermostat (Click here).
Tip:This step is not directly related to engine stall.
Result
Result
Proceed to
Abnormal
A
Normal
B
B INSPECT ENGINE COOLANT TEMPERATURE SENSORClick here
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Suspected Area
Proceed to
Coolant Temp
120°C (248°F) or higher
Engine coolant temperature sensor
A
Engine coolant temperature is lower than outside temperature* by 15°C (27°F) or more
Engine coolant temperature sensor
Values are other than above
-
B
Tip:*: Use an actual outside temperature estimated from the Initial Intake Air, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected.
B CLEAR DTCClick here
INSPECT ENGINE COOLANT TEMPERATURE SENSOR
Inspect the engine coolant temperature sensor (Click here).
Tip:Perform "Inspection After Repair" after replacing the engine coolant temperature sensor (Click here).
Result
Result
Proceed to
Normal
A
Abnormal
B
CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM)
Disconnect the engine coolant temperature sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
B4-2 - B75-93 (THW)
Always
Below 1 Ω
B4-1 - B75-94 (ETHW)
Always
Below 1 Ω
B4-2 or B75-93 (THW) - Body ground
Always
10 kΩ or higher
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
CLEAR DTC
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (Click here).
Powertrain > Engine and ECT > Clear DTCs
Result
Proceed to
NEXT
NEXT END
CHECK IGNITION SYSTEM
Perform ignition system On-vehicle Inspection (Click here).
Tip:Perform "Inspection After Repair" after repairing or replacing the ignition system (Click here).
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Result
Suspected Area
Proceed to
Total of ISC Learning Value and ISC Feedback Value
Less than 80% of the current value of the vehicle
Intake air volume insufficient
A
80% or more of the current value of the vehicle
B
B PERFORM ACTIVE TEST USING GTS (CONTROL THE VVT LINEAR (BANK1))Click here
CHECK INTAKE SYSTEM
Check for air leakage in the intake system [vacuum hose disconnection, cracks, damaged gaskets, etc.] (Click here).
Tip:If the accelerator pedal is released after racing the engine, the inspection is easier to perform because the vacuum inside the intake pipes increases and the air suction noise becomes louder.
If Short FT #1 and Long FT #1 are largely different from the normal values when idling (the intake air volume is small) and almost the same as the normal values when racing the engine (the intake air volume is high), air leakage may be present.
OK
There is no air leakage.
Tip:Perform "Inspection After Repair" after repairing or replacing the intake system (Click here).
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE INTAKE SYSTEM
CHECK INTAKE SYSTEM
Check the intake system.
Inspect the brake booster assembly (for LHD) (Click here).
Inspect the brake booster assembly (for RHD) (Click here).
Inspect the mass air flow meter sub-assembly (Click here).
Check the PCV hose.
Inspect the PCV valve (Click here).
Inspect the purge VSV (Click here).
Result
Result
Proceed to
Abnormal
A
Normal
B
Tip:Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly (Click here).
A REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
B READ FREEZE FRAME DATAClick here
PERFORM ACTIVE TEST USING GTS (CONTROL THE VVT LINEAR (BANK1))
Perform the Active Test, referring to DTC P0011 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems.
If the camshaft timing oil control valve assembly (for intake camshaft) is stuck at the advanced side, the valve overlap increases and combustion worsens due to the interval EGR which may cause rough idle or cause the engine to stall.
Result
Proceed to
OK
NG
CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT) - ECM)
Check the harnesses and connectors, referring to DTC P0010 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
PERFORM ACTIVE TEST USING GTS (CONTROL THE VVT EXHAUST LINEAR (BANK1))
Perform the Active Test, referring to DTC P0014 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems.
If the camshaft timing oil control valve assembly (for exhaust camshaft) is stuck on, the valve overlap increases and combustion worsens due to the internal EGR which may cause rough idle or cause the engine to stall.
Result
Proceed to
OK
NG
CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT) - ECM)
Check the harnesses and connectors, referring to DTC P0013 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
READ FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Suspected Area
Proceed to
IGN Advance
Knock Correct Learn Value
Differs from the current value of the vehicle by 10 deg or more
Less than 3 deg(CA)
Engine coolant temperature sensor
Mass air flow meter sub-assembly
Knock sensor
A
3 deg(CA) or more
-
Differs from the current value of the vehicle by less than 10 deg
-
-
B
INSPECT ENGINE COOLANT TEMPERATURE SENSOR
Inspect the engine coolant temperature sensor (Click here).
Tip:Perform "Inspection After Repair" after replacing engine coolant temperature sensor (Click here).
Result
Proceed to
OK
NG
CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM)
Disconnect the engine coolant temperature sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
B4-2 - B75-93 (THW)
Always
Below 1 Ω
B4-1 - B75-94 (ETHW)
Always
Below 1 Ω
B4-2 or B75-93 (THW) - Body ground
Always
10 kΩ or higher
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
INSPECT MASS AIR FLOW METER SUB-ASSEMBLY (INTAKE AIR TEMPERATURE SENSOR)
Inspect the mass air flow meter sub-assembly (Click here).
Tip:If the intake air temperature sent to the ECM is higher than the standard due to the mass air flow meter sub-assembly (intake air temperature sensor) malfunctioning, the ignition timing may become delayed.
Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly (Click here).
Result
Proceed to
OK
NG
READ VALUE USING GTS (IGN ADVANCE AND KNOCK CORRECT LEARN VALUE)
Connect the GTS to the DLC3.
Start the engine and warm it up until the engine coolant temperature stabilizes.
Tip:The A/C switch and all accessory switches should be off.
Turn the GTS on.
Idle the engine.
Enter the following menus: Powertrain / Engine and ECT / Data List / IGN Advance and Knock Correct Learn Value.
Powertrain > Engine and ECT > Data List
Tester Display
IGN Advance
Knock Correct Learn Value
Check the Data List indication.
Result
Data List
Proceed to
IGN Advance
Knock Correct Learn Value
Differs from the current value of the vehicle by 10 deg or more
Less than 3 deg(CA)
A
3 deg(CA) or more
Differs from the current value of the vehicle by less than 10 deg
-
B
Tip:If the results of the checks performed in steps 57 to 65 were all normal and the sum of ISC Feedback Value and ISC Learning Value in the Data List is 120% of the normal value or more, check for carbon deposits in the throttle body assembly. If there are carbon deposits, clean them off to finish the troubleshooting procedure.
B END
CHECK TERMINAL VOLTAGE (#10, #20, #30 AND #40)
Check the harness and connectors, referring to DTC P0300 procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.)
Result
Proceed to
OK
NG
CHECK IGNITION SYSTEM
Perform ignition system On-vehicle Inspection (Click here).
Tip:Perform "Inspection After Repair" after repairing or replacing the ignition system (Click here).
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
CHECK FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Suspected Area
Proceed to
A/C Signal
Air Conditioner FB Val
Power Steering Signal
A/C Signal display changes from OFF to ON*1
Value is shown
-
A/C system (for manual air conditioning system)
A
A/C system (for automatic air conditioning system)
B
Value is 0 L/s
Does not change from OFF
-
C
*2
D
*3
Changes from OFF to ON
Power steering system
A/C Signal display does not change from OFF*1
-
Changes from OFF to ON
Does not change from OFF
-
Tip:*1: Check not only the ON/OFF state of the air conditioner but also the change in air conditioner load.
*2: for CVT Models
*3: for Manual Transaxle Models
The normal value for the ISC learned value is engine displacement (liters) x 0.9.
Even if the results are normal, the power steering system or A/C system may have been malfunctioning. If there are no problems with other parts, inspect the power steering system or A/C system.
D CHECK FREEZE FRAME DATAClick here
CHECK FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Suspected Area
Proceed to
Electrical Load Signal 1 (2) or Electric Load Feedback Val
Electric Load Feedback Val
Difference between Engine Speed and SPD (NT)
Vehicle Speed
Electrical Load Signal 1 (2) display changes from OFF to ON*1, or value displayed for Electric Load Feedback Val increases*1
Value displayed for Electric Load Feedback Val changes
-
-
Electrical load signal circuit
C
Value displayed for Electric Load Feedback Val does not change
At least 1 of the 5 sets of freeze frame data is less than 100 rpm
Less than 15 km/h (9.3 mph)
CVT system
B
15 km/h (9.3 mph) or more
-
A
All 5 sets of freeze frame data are 100 rpm or more
-
-
Electrical Load Signal 1 (2) display does not change from OFF, or value displayed for Electric Load Feedback Val does not increase
-
At least 1 of the 5 sets of freeze frame data is less than 100 rpm
Less than 15 km/h (9.3 mph)
CVT system
B
15 km/h (9.3 mph) or more
-
A
All 5 sets of freeze frame data are 100 rpm or more
-
-
Tip:*1: If the Electrical Load Signal 1 (2) display changes from OFF to ON, or the "Electric Load Feedback Val" increases, it probably is a malfunction due to a change in electrical load. Check the generator and the continuity and connections between the generator and ECM.
If the vehicle speed is 15 km/h (9.3 mph) or less and the difference between Engine Speed and SPD (NT) is 100 rpm or less, inspect the CVT. (Depending on the rate of vehicle deceleration, the engine speed may have decreased due to the CVT lock-up release being late.)
The normal value for the ISC learned value is engine displacement (liters) x 0.9.
Even if the results are normal, the electrical load signal system or CVT system may have been malfunctioning. If there are no problems with other parts, inspect the electrical load system or CVT system.
CHECK FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item for DTC P1605
Suspected Area
Proceed to
Shift SW Status (P Range)
Shift SW Status (N Range)
Neutral Position SW Signal
P and N position are both OFF in at least one data set
ON when shift lever in D or R
Park/Neutral position switch assembly
A
OFF when shift lever in D or R
CVT system
B
All 5 sets of freeze frame data are ON
-
-
C
Tip:Even if the results are normal, the park/neutral position switch assembly or CVT system may have been malfunctioning. If there are no problems with other parts, inspect the park/neutral position switch assembly or CVT system.
CHECK FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored.
Result
Freeze Frame Data Item for DTC P1605
Suspected Area
Proceed to
Electrical Load Signal 1 (2) or Electric Load Feedback Val
Electric Load Feedback Val
Electrical Load Signal 1 (2) display changes from OFF to ON*1, or value displayed for Electric Load Feedback Val increases*1
Value displayed for Electric Load Val changes
Electrical load signal circuit
A
Value displayed for Electric Load Val does not change
-
B
Electrical Load Signal 1 (2) display does not change from OFF, or value displayed for Electric Load Feedback Val does not increase
-
-
Tip:*1: If the Electrical Load Signal 1 (2) display changes from OFF to ON, or the "Electric Load Feedback Val" increases, it probably is a malfunction due to a change in electrical load. Check the generator and the continuity and connections between the generator and ECM.
The normal value for the ISC learned value is engine displacement (liters) x 0.9.
Even if the results are normal, the electrical load signal system may have been malfunctioning. If there are no problems with other parts, inspect the electrical load system.
CHECK FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Click here).
Result
Freeze Frame Data Item
Result
Suspected Area
Proceed to
Throttle Sensor Position, Calculate Load
Calculate Load decreases while Throttle Sensor Position increases
Mass air flow meter sub-assembly
A
Calculate Load does not decrease while Throttle Sensor Position increases
-
B
B CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY)Click here
INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
Remove the mass air flow meter sub-assembly.
Check for foreign matter in the air flow passage of the mass airflow meter sub-assembly.
Result
Result
Proceed to
Visible foreign matter is not present
A
Visible foreign matter is present
B
Tip:Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly (Click here).
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
Check the harnesses and connectors, referring to DTC P0102 inspection procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
PERFORM DRIVE TEST
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Start the engine and warm it up until the engine coolant temperature stabilizes.
Tip:The A/C switch and all accessory switches should be off.
Idle the engine.
Using the GTS, read the value of Calculate Load in the Data List.
Powertrain > Engine and ECT > Data List
Tester Display
Calculate Load
Standard
Data List
Specified Condition
Calculate Load
90 to 110% of the current value of the vehicle
Tip:Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly (Click here).
Result
Proceed to
OK
NG
CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY)
Check the harness and connectors, referring to Fuel Injector Circuit procedure (Click here).
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.)
Result
Proceed to
OK
NG
CHECK IGNITION SYSTEM
Perform ignition system On-vehicle Inspection (Click here).
Tip:Perform "Inspection After Repair" after repairing or replacing the ignition system (Click here).
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP/SPEED)
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump/Speed.
Powertrain > Engine and ECT > Active Test
Tester Display
Control the Fuel Pump / Speed
Check whether the fuel pump operating sound occurs when performing the Active Test on the GTS.
Standard
GTS Operation
Specified Condition
ON
Operating sound heard
OFF
Operating sound not heard
Result
Result
Proceed to
Abnormal
A
Normal
B
Tip:Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
While performing the Active Test, make sure that there is no fuel leakage from the pipes, no signs that fuel has leaked, and no fuel smell.
If the fuel pump operating noise is abnormal, proceed to step 79.
B CHECK FUEL SYSTEMClick here
INSPECT FUEL PUMP
Inspect the fuel pump (Click here).
Tip:Perform "Inspection After Repair" after replacing the fuel pump (Click here).
Result
Proceed to
OK
NG
CHECK FUEL SYSTEM
Check the fuel system.
Check the fuel pump operation.
Check the fuel leaks.
Check the fuel pressure.
Perform the Active Test [Control the All Cylinder Fuel Cut].
Tip:For the fuel system On-vehicle Inspection, refer to the following procedures (Click here).
Result
Result
Proceed to
Abnormal
A
Normal
B
CHECK FUEL SYSTEM
Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter and inside the fuel tank), and for signs that the fuel pump was stuck.
Result
Result
Proceed to
There is no foreign matter and no signs that fuel pump was stuck
A
There is foreign matter or signs that fuel pump was stuck
B
Tip:If there is foreign matter such as iron particles on the fuel pump, fuel filter or fuel tank, remove the foreign matter.
B REPAIR OR REPLACE FUEL SYSTEM
CHECK FUEL SYSTEM
Check the fuel system.
Check the fuel pump operation.
Check the fuel leaks.
Check the fuel pressure.
Perform the Active Test [Control the All Cylinder Fuel Cut].
Tip:For the fuel system On-vehicle Inspection, refer to the following procedures (Click here).
Perform "Inspection After Repair" after replacing the fuel pump (Click here).
Result
Proceed to
OK
NG
OK END
NG REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA