SFI SYSTEM, Diagnostic DTC:P013616
| DTC Code | DTC Name |
|---|---|
| P013616 | A/F (O2) Sensor Circuit Bank 1 Sensor 2 Circuit Current (Voltage) Below Threshold |
DESCRIPTION
Refer to DTC P003612.
Although the DTC title say oxygen sensor, this DTC relate to the air fuel ratio sensor (sensor 2).
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
Note |
|---|---|---|---|---|---|---|
P013616 |
A/F (O2) Sensor Circuit Bank 1 Sensor 2 Circuit Current (Voltage) Below Threshold |
Either of the following conditions is met (2 trip detection logic).
|
|
Comes on |
DTC stored |
SAE Code: P0136 |
MONITOR DESCRIPTION
Active Air fuel Ratio Control
The ECM usually performs air fuel ratio feedback control so that the air fuel ratio sensors output indicates a near stoichiometric air fuel ratio. This vehicle includes active air fuel ratio control in addition to regular air fuel ratio control. The ECM performs active air fuel ratio control to detect any deterioration in the Three-Way Catalytic Converter (TWC) and any malfunctions of the air fuel ratio sensor (sensor 2) (refer to the diagram below).
Active air fuel ratio control is performed for approximately 30 seconds while driving with a warm engine. During active air fuel ratio control, the air fuel ratio is forcibly regulated to become lean or rich by the ECM. If the ECM detects a malfunction, a DTC is stored.
Abnormal Air Fuel Ratio Sensor (Sensor 2) Output Current
Case 1: The ECM illuminates the MIL and stores a DTC when active rich air-fuel ratio control is being performed and the air fuel ratio sensor (sensor 2) current is 6 mA or more.
Case 2: The ECM illuminates the MIL and stores a DTC when active rich air-fuel ratio control is being performed, the oxygen storage capacity of the catalyst is more than 1.5 g and the air fuel ratio sensor (sensor 2) current is -0.25757 mA or more.
MONITOR STRATEGY
Required Sensors/Components (Main) |
Air fuel ratio sensor (sensor 2) |
Required Sensors/Components (Related) |
Crankshaft position sensor Engine coolant temperature sensor Mass air flow meter sub-assembly Throttle position sensor Air fuel ratio sensor (sensor 1) |
Frequency of Operation |
Once per driving cycle |
TYPICAL ENABLING CONDITIONS
Battery voltage |
11 V or higher |
Intake air temperature |
-10°C (14°F) or higher |
Engine coolant temperature |
75°C (167°F) or higher |
Atmospheric pressure |
76 kPa(abs) [11.02 psi(abs)] or higher |
Idling |
Off |
Engine speed |
Less than 4000 rpm |
Air fuel ratio sensor (sensor 1) status |
Activated |
Fuel system status |
Closed loop |
Engine load |
10% or higher, and less than 140% |
TYPICAL MALFUNCTION THRESHOLDS
Both of the following conditions are met |
A and B |
A. Continuous time of active rich air fuel ratio control*1 |
0.5 seconds or more |
*1: Target air fuel ratio |
13.8 or less |
B. Either of the following conditions is met |
(a) or (b) |
(a) Air fuel ratio sensor (sensor 2) current |
6 mA or more |
(b) OSC (Oxygen Storage Capacity) of catalyst |
More than 1.5 g |
CONFIRMATION DRIVING PATTERN
This confirmation driving pattern is used for the "Perform Confirmation Driving Pattern" procedure of the following diagnostic troubleshooting procedure.
Performing this confirmation driving pattern will activate the air fuel ratio sensor (sensor 2) monitor (the catalyst monitor is performed simultaneously). This is very useful for verifying the completion of a repair.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON [A].
Turn the GTS on.
Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher [B].
Drive the vehicle at 75 to 120 km/h (46 to 75 mph) for 10 minutes or more [C].
CAUTION:When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Enter the following menus: Powertrain / Engine / Trouble Codes [D].
Read the pending DTCs.
Tip:If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P013616.
Check the DTC judgment result.
GTS Display
Description
NORMAL
DTC judgment completed
System normal
ABNORMAL
DTC judgment completed
System abnormal
INCOMPLETE
DTC judgment not completed
Perform driving pattern after confirming DTC enabling conditions
Tip:If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system is malfunctioning.
If the judgment result is INCOMPLETE, perform steps [C] through [D] again.
WIRING DIAGRAM
Refer to DTC P003612.
CAUTION / NOTICE / HINT
Malfunctioning areas can be identified by performing the Active Test "Control the Injection Volume for A/F Sensor". This Active Test can help to determine whether the air fuel ratio sensors (sensor 1 and sensor 2) and other potential trouble areas are malfunctioning.
The following procedure describes how to perform the Active Test "Control the Injection Volume for A/F Sensor" using the GTS.
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 is 75°C (167°F) or higher.
Warm up the air fuel ratio sensors at an engine speed of 2500 rpm for 90 seconds.
Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / Data List / A/F (O2) Sensor Voltage B1S1 and A/F (O2) Sensor Current B1S2.
Perform the Active Test with the engine idling (change the fuel injection volume).
Monitor the output values of the air fuel ratio sensor (sensor 1) (A/F (O2) Sensor Voltage B1S1) and air fuel ratio sensor (sensor 2) (A/F (O2) Sensor Current B1S2) displayed on the GTS.
The Active Test "Control the Injection Volume for A/F Sensor" can be used to lower the fuel injection volume by 12.5% or increase the injection volume by 12.5%.
Each sensor reacts in accordance with the increase and decrease in the fuel injection volume.
GTS Display (Sensor) |
Injection Volume |
Status |
Value |
|---|---|---|---|
A/F (O2) Sensor Voltage B1S1 (Air fuel ratio sensor (sensor 1)) |
12.5% |
Rich |
Below 3.1 V |
-12.5% |
Lean |
Higher than 3.4 V |
|
A/F (O2) Sensor Current B1S2 (Air fuel ratio sensor (sensor 2)) |
12.5% |
Rich |
Below -0.86 mA |
-12.5% |
Lean |
More than 0.33 mA |
The air fuel ratio sensor (sensor 1) has an output delay of a few seconds and the air fuel ratio sensor (sensor 2) has a maximum output delay of approximately 20 seconds.
Performing the Active Test "Control the Injection Volume for A/F Sensor" allows the output value of the air fuel ratio sensors (sensor 1 and sensor 2) to be checked and graphed.
Inspect the fuses for circuits related to this system before performing the following procedure.
Sensor 1 refers to the sensor closest to the engine assembly.
Sensor 2 refers to the sensor farthest away from the engine assembly.
Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P013616)
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the DTCs.
Powertrain > Engine > Trouble Codes
Result
Result
Proceed to
DTC P013616 is output
A
DTC P013616 and other DTCs are output
B
Tip:If any DTCs other than P013616 are output, troubleshoot those DTCs first.
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 and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.
Warm up the air fuel ratio sensors at an engine speed of 2500 rpm for 90 seconds.
Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / Data List / Coolant Temperature, A/F (O2) Sensor Voltage B1S1 and A/F (O2) Sensor Current B1S2.
Powertrain > Engine > Active Test
Active Test Display
Control the Injection Volume for A/F Sensor
Data List Display
Coolant Temperature
A/F (O2) Sensor Voltage B1S1
A/F (O2) Sensor Current B1S2
Perform the Control the Injection Volume for A/F Sensor operation with the engine idling.
Monitor the output values of the air fuel ratio sensors (A/F (O2) Sensor Voltage B1S1 and A/F (O2) Sensor Current B1S2) displayed on the GTS.
Tip:The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 12.5%.
The air fuel ratio sensor (sensor 1) has an output delay of a few seconds and the air fuel ratio sensor (sensor 2) has a maximum output delay of approximately 20 seconds.
If the sensor output value does not change (almost no reaction) while performing the Active Test, the sensor may be malfunctioning.
Standard
GTS Display (Sensor)
Injection Volume
Status
Value
A/F (O2) Sensor Voltage B1S1
(Air fuel ratio sensor (sensor 1))
12.5%
Rich
Below 3.1 V
-12.5%
Lean
Higher than 3.4 V
A/F (O2) Sensor Current B1S2
(Air fuel ratio sensor (sensor 2))
12.5%
Rich
Below -0.86 mA
-12.5%
Lean
More than 0.33 mA
Result
Status of A/F (O2) Sensor Voltage B1S1
Status of A/F (O2) Sensor Current B1S2
Suspected Trouble Area
Proceed to
Lean/Rich
Lean/Rich
Air fuel ratio sensor (sensor 2)
A
Lean
Lean
Gas leak from exhaust system
Extremely lean actual air fuel ratio
Air fuel ratio sensor (sensor 2)
B
Rich
Rich
Gas leak from exhaust system
Extremely rich actual air fuel ratio
Air fuel ratio sensor (sensor 2)
Lean/Rich
Lean
Air fuel ratio sensor (sensor 2)
Gas leak from exhaust system
C
Lean/Rich
Rich
Air fuel ratio sensor (sensor 2)
Gas leak from exhaust system
Lean
Lean/Rich
Air fuel ratio sensor (sensor 1)
Air fuel ratio sensor (sensor 2)
D
Rich
Lean/Rich
Air fuel ratio sensor (sensor 1)
Air fuel ratio sensor (sensor 2)
Lean: During the Control the Injection Volume for A/F Sensor Active Test, the air fuel ratio sensor (sensor 1) output voltage (A/F (O2) Sensor Voltage B1S1) is consistently higher than 3.4 V, and the air fuel ratio sensor (sensor 2) output current (A/F (O2) Sensor Current B1S2) is consistently more than 0.33 mA.
Rich: During the Control the Injection Volume for A/F Sensor Active Test, the air fuel ratio sensor (sensor 1) output voltage (A/F (O2) Sensor Voltage B1S1) is consistently below 3.1 V, and the air fuel ratio sensor (sensor 2) output current (A/F (O2) Sensor Current B1S2) is consistently below -0.86 mA.
Lean/Rich: During the Control the Injection Volume for A/F Sensor Active Test, the output value of the air fuel ratio sensor (sensor 1) or air fuel ratio sensor (sensor 2) alternate correctly.
Tip:Refer to "Data List / Active Test" [A/F (O2) Sensor Voltage B1S1, A/F (O2) Sensor Current B1S2].
B CHECK FOR EXHAUST GAS LEAKClick here
C CHECK FOR EXHAUST GAS LEAKClick here
D REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)Click here
REPLACE AIR FUEL RATIO SENSOR (SENSOR 2)
Replace the air fuel ratio sensor (sensor 2).
Tip:Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 2).
Result
Proceed to
NEXT
CLEAR DTC
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs.
Powertrain > Engine > Clear DTCs
Turn the ignition switch off and wait for at least 30 seconds.
Result
Proceed to
NEXT
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Powertrain > Engine > Utility
Tester Display
All Readiness
Input the DTC: P013616.
Check the DTC judgment result.
Table 4. Result GTS Display
Description
NORMAL
DTC judgment completed
System normal
ABNORMAL
DTC judgment completed
System abnormal
INCOMPLETE
DTC judgment not completed
Perform driving pattern after confirming DTC enabling conditions
Result
Proceed to
NEXT
NEXT END
CHECK FOR EXHAUST GAS LEAK
Check for exhaust gas leaks.
OK
No gas leaks in exhaust system.
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE EXHAUST SYSTEM
CHECK CAUSE OF EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO
Check the cause of extremely rich or lean actual air fuel ratio, referring to the DTC P017100 and P017200 Inspection Procedure.
Result
Proceed to
NEXT
NEXT CLEAR DTCClick here
CHECK FOR EXHAUST GAS LEAK
Check for exhaust gas leaks.
OK
No gas leaks in exhaust system.
Tip:Perform "Inspection After Repair" after repairing or replacing the exhaust system.
Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 2).
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE EXHAUST SYSTEM
REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)
Replace the air fuel ratio sensor (sensor 1).
Tip:Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 1).
Result
Proceed to
NEXT
CLEAR DTC
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs.
Powertrain > Engine > Clear DTCs
Turn the ignition switch off and wait for at least 30 seconds.
Result
Proceed to
NEXT
CHECK WHETHER DTC OUTPUT RECURS (DTC P013616)
Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Powertrain > Engine > Utility
Tester Display
All Readiness
Input the DTC: P013616.
Check that the DTC judgment result is NORMAL. If the DTC judgment result is INCOMPLETE, perform the confirmation drive pattern again but increase the vehicle speed.
Result
Result
Proceed to
NORMAL
(DTCs are not output)
A
ABNORMAL
(DTC P013616 is output)
B
Tip:Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 2).
A END