SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P107A2A, P107A64

DTC Code	DTC Name
P107A2A	Fuel Rail Pressure Sensor (Low) Signal Stuck in Range
P107A64	Fuel Rail Pressure Sensor (Low) Signal Plausibility Failure

DESCRIPTION

Refer to DTC P107A11.

Click here

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P107A2A	Fuel Rail Pressure Sensor (Low) Signal Stuck in Range	When the target fuel pressure for the low pressure side changes, the change in the fuel pressure sensor (for low pressure side) value is abnormal (2 trip detection logic).	Leak of fuel Fuel pump control ECU Fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side) Fuel pump (for low pressure side) Fuel main valve assembly (for high pressure) ECM	Comes on	DTC stored	SAE Code: P107B
P107A64	Fuel Rail Pressure Sensor (Low) Signal Plausibility Failure	When the fuel pump on the low pressure side is operated at the maximum during a fuel cut, the low pressure side fuel pressure is higher or lower than threshold (2 trip detection logic).	Leak of fuel Fuel pump control ECU Fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side) Fuel pump (for low pressure side) Fuel main valve assembly (for high pressure) ECM	Comes on	DTC stored	SAE Code: P107B

MONITOR DESCRIPTION

Fuel Pressure Sensor Stuck Monitor
If the fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side) value does not follow the change in the target low pressure side fuel pressure, it is judged as a malfunction. If this malfunction is detected in 2 consecutive driving cycles, the ECM will illuminate the MIL and store DTC P107A2A.

Fuel Pressure Sensor Correlation Monitor (Fuel Cut)
If the fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side) value is less than or higher than the threshold value when the fuel pump on the low pressure side is operated at the maximum during a fuel cut, it is judged as a malfunction has occurred. If this malfunction is detected for 2 consecutive driving cycles, the ECM will illuminate the MIL and store DTC P107A64.

MONITOR STRATEGY

Required Sensors/Components (Main)

Fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side)

Required Sensors/Components (Related)

ECM (atmospheric pressure sensor)

Frequency of Operation

Continuous: Stuck monitor

Once per driving cycle: Correlation monitor

CONFIRMATION DRIVING PATTERN

P107A2A

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the engine switch off and wait for at least 30 seconds.
Turn the engine switch on (IG) [A].
Turn the GTS on.
Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
Drive the vehicle at 50 to 80 km/h (31 to 50 mph) for 15 minutes or more [C].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

Tech Tips

Drive the vehicle while keeping the engine load as constant as possible.
With the shift lever in S [D], accelerate the vehicle to 64 km/h (40 mph) or more by depressing the accelerator pedal for at least 10 seconds [E].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Soon after performing step [E] above, release the accelerator pedal for 10 seconds or more without depressing the brake pedal in order to execute fuel-cut control [F].
Allow the vehicle to decelerate until the vehicle speed decreases to less than 10 km/h (6 mph).
Repeat steps [D] through [F] above at least 3 times in one driving cycle.
Enter the following menus: Powertrain / Engine / Trouble Codes [G].
Read the pending DTCs.
Tech Tips
- 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: P107A2A.

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

Tech Tips

If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system has a malfunction.
If the judgment result is INCOMPLETE, perform steps [C] through [G] again.

P107A64

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the engine switch off and wait for at least 30 seconds.
Turn the engine switch on (IG) [A].
Turn the GTS on.
Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
Drive the vehicle at approximately 80 km/h (50 mph) for 10 seconds or more, and then decelerate the vehicle by releasing the accelerator pedal for 10 seconds or more to perform the fuel-cut [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.
Tech Tips
- 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: P107A64.

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

Tech Tips

If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system has a malfunction.
If the judgment result is INCOMPLETE, perform steps [C] through [D] again.

CAUTION / NOTICE / HINT

Tech Tips

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 P107A2A, P107A64, P008A00 OR P008B00)

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs and record the Freeze Frame Data.

Powertrain > Engine > Trouble Codes

Result

Result	Proceed to
DTC P107A2A is output	A
DTC P107A64 is output	B
DTC P107A2A or P107A64 and P008A00 are output	C
DTC P107A2A or P107A64 and P008B00 are output	D
DTC P107A2A, P107A64, P008A00 and/or P008B00 and other DTCs are output	E

Tech Tips

If any DTCs other than P107A2A, P107A64, P008A00 and/or P008B00 are output, troubleshoot those DTCs first.

READ FREEZE FRAME DATA (FUEL PRESSURE (LOW)) Click here

CHECK FUEL LEAK Click here

READ VALUE USING GTS (FUEL PRESSURE (LOW)) Click here

GO TO DTC CHART Click here

READ VALUE USING GTS (FUEL PRESSURE (LOW))

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Fuel Pressure (Low).

Powertrain > Engine > Data List

Tester Display

Fuel Pressure (Low)
Start the engine.
Record the Fuel Pressure (Low) value.
Turn the engine switch off.
Discharge the fuel pressure.

Tech Tips

DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.
1. Remove the EFI-MAIN NO. 2 fuse from the engine room relay block and junction block assembly.
2. Start the engine.
3. After the engine has stopped on its own, turn the engine switch off.
  
  Tech Tips
  
  If the engine does not stop naturally, perform direct injection by racing the engine to reduce the fuel pressure [Fuel Pressure (High)] and stop the engine.
4. Crank the engine again and make sure that the engine does not start.
5. Install the EFI-MAIN NO. 2 fuse.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Fuel Pressure (Low).

Powertrain > Engine > Data List

Tester Display

Fuel Pressure (Low)

Tester Display
Fuel Pressure (Low)

Tester Display
Fuel Pressure (Low)

Compare the Fuel Pressure (Low) value recorded with the engine running to the Fuel Pressure (Low) value currently shown on the GTS.

Result

Result	Proceed to
Fuel Pressure (Low) value drops	A
Fuel Pressure (Low) value does not fluctuate	B

Tech Tips

Perform "Inspection After Repair" after replacing the fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side).

Click here

REPLACE FUEL PRESSURE SENSOR (FUEL DELIVERY PIPE WITH SENSOR SUB-ASSEMBLY) (FOR LOW PRESSURE SIDE) Click here

CLEAR DTC

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs.

Powertrain > Engine > Clear DTCs

Turn the engine switch off and wait for at least 30 seconds.

Result

Proceed to
NEXT

CHECK WHETHER DTC OUTPUT RECURS (DTC P107A2A OR P107A64)

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: P107A2A or P107A64.

Tester Display
All Readiness

Check the DTC judgment result.

Result

Proceed to

NORMAL

(DTCs are not output)

ABNORMAL

(DTC P107A2A or P107A64 is output)

CHECK FOR INTERMITTENT PROBLEMS Click here

PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP DUTY RATIO)

Install the fuel pressure gauge (for low pressure line of low pressure side).

Click here
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump Duty Ratio / Data List / Fuel Pressure (Low).

Powertrain > Engine > Active Test

Active Test Display

Control the Fuel Pump Duty Ratio

Data List Display

Fuel Pressure (Low)

Active Test Display
Control the Fuel Pump Duty Ratio

Data List Display
Fuel Pressure (Low)

Compare the values in the Data List using the GTS and the fuel pressure gauge when the Active Test was performed.

Standard

GTS Operation	Standard
Low	Data List value and fuel pressure gauge are within +/-50 kPa of each other
High

Tech Tips

Perform "Inspection After Repair" after replacing the fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side).

Click here

Result

Proceed to
OK
NG

REPLACE ECM Click here

REPLACE FUEL PRESSURE SENSOR (FUEL DELIVERY PIPE WITH SENSOR SUB-ASSEMBLY) (FOR LOW PRESSURE SIDE) Click here

READ FREEZE FRAME DATA (FUEL PRESSURE (LOW))

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.

Read the Freeze Frame Data value from step 1.

Result

Result	Proceed to
Fuel Pressure (Low) value is 770 kPag or higher	A
Fuel Pressure (Low) value is 540 kPag or less	B

GO TO STEP 16 Click here

CHECK FUEL LEAK

Check around and beneath the vehicle for fuel leaks, fumes, etc.

OK
No fuel leaks present.

Result

Proceed to
OK
NG

REPAIR OR REPLACE FUEL LEAK POINT

PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP DUTY RATIO)

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump Duty Ratio.

Powertrain > Engine > Active Test

Tester Display

Control the Fuel Pump Duty Ratio

Tester Display
Control the Fuel Pump Duty Ratio

Check whether the fuel pump operating sound occurs when performing the Active Test on the GTS.

Standard

GTS Operation	Standard
High	Operating sounds can be heard from fuel pump (for low pressure side)

Tech Tips

Perform "Inspection After Repair" after replacing the fuel pump (for low pressure side).

Click here

Result

Proceed to
OK
NG

REPLACE FUEL PUMP (FOR LOW PRESSURE SIDE) Click here

PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP DUTY RATIO)

Discharge the fuel pressure.

Tech Tips

DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.
1. Remove the EFI-MAIN NO. 2 fuse from the engine room relay block and junction block assembly.
2. Start the engine.
3. After the engine has stopped on its own, turn the engine switch off.
  
  Tech Tips
  
  If the engine does not stop naturally, perform direct injection by racing the engine to reduce the fuel pressure [Fuel Pressure (High)] and stop the engine.
4. Crank the engine again and make sure that the engine does not start.
5. Install the EFI-MAIN NO. 2 fuse.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump Duty Ratio / Data List / Fuel Pressure (Low).

Powertrain > Engine > Active Test

Active Test Display

Control the Fuel Pump Duty Ratio

Data List Display

Fuel Pressure (Low)

Read the value displayed on the GTS when the Active Test was performed.

Standard

GTS Operation	Standard
Low to High	When switching from Low to High, Fuel Pressure (Low) value changes

Tech Tips

Once the fuel pressure becomes high, the fuel pressure will not decrease, even when switched from High to Low. Therefore, make sure that the fuel pressure is low before checking that the fuel pressure changes when switching from Low to High.

Result

Proceed to
OK
NG

PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP DUTY RATIO) Click here

PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP DUTY RATIO)

Discharge the fuel pressure.

Tech Tips

DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.
1. Remove the EFI-MAIN NO. 2 fuse from the engine room relay block and junction block assembly.
2. Start the engine.
3. After the engine has stopped on its own, turn the engine switch off.
  
  Tech Tips
  
  If the engine does not stop naturally, perform direct injection by racing the engine to reduce the fuel pressure [Fuel Pressure (High)] and stop the engine.
4. Crank the engine again and make sure that the engine does not start.
5. Install the EFI-MAIN NO. 2 fuse.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump Duty Ratio / Data List / Fuel Pressure (Low).

Powertrain > Engine > Active Test

Active Test Display

Control the Fuel Pump Duty Ratio

Data List Display

Fuel Pressure (Low)

Read the value displayed on the GTS when the Active Test was performed.

Standard

GTS Operation	Fuel Pressure (Low)
Low	50 kPag or higher
High	420 kPag or higher

Tech Tips

OK
Actual Low and High values are as shown above.

Result

Proceed to
OK
NG

READ VALUE USING GTS (FUEL PRESSURE (LOW)) Click here

PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP DUTY RATIO)

Install the fuel pressure gauge (for low pressure line of low pressure side).

Click here
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump Duty Ratio / Data List / Fuel Pressure (Low).

Powertrain > Engine > Active Test

Active Test Display

Control the Fuel Pump Duty Ratio

Data List Display

Fuel Pressure (Low)

Compare the values in the Data List using the GTS and the fuel pressure gauge when the Active Test was performed.

Standard

GTS Operation	Standard
Low	Data List value and fuel pressure gauge are within +/-50 kPa of each other
High

Tech Tips

Perform "Inspection After Repair" after replacing the fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side).

Click here

Result

Proceed to
OK
NG

REPLACE FUEL PRESSURE SENSOR (FUEL DELIVERY PIPE WITH SENSOR SUB-ASSEMBLY) (FOR LOW PRESSURE SIDE) Click here

CLEAR DTC

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs.

Powertrain > Engine > Clear DTCs

Turn the engine switch off and wait for at least 30 seconds.

Result

Proceed to
NEXT

CHECK WHETHER DTC OUTPUT RECURS (DTC P107A2A OR P107A64)

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: P107A2A or P107A64.

Check the DTC judgment result.

Result

Proceed to

NORMAL

(DTCs are not output)

ABNORMAL

(DTC P107A2A or P107A64 is output)

CHECK FOR INTERMITTENT PROBLEMS Click here

REPLACE ECM Click here

READ VALUE USING GTS (FUEL PRESSURE (LOW))

Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Fuel Pressure (Low).

Powertrain > Engine > Data List

Tester Display

Fuel Pressure (Low)
Record the Fuel Pressure (Low) value.
Turn the engine switch off.
Wait for 10 seconds.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Fuel Pressure (Low).

Powertrain > Engine > Data List

Tester Display

Fuel Pressure (Low)

Compare the Fuel Pressure (Low) value recorded with the engine running to the Fuel Pressure (Low) value currently shown on the GTS.

Result

Result	Proceed to
Fuel Pressure (Low) value is maintained	A
Fuel Pressure (Low) value drops	B

Tech Tips

Perform "Inspection After Repair" after replacing the fuel pump (for low pressure side).

Click here

REPLACE FUEL PUMP (FOR LOW PRESSURE SIDE) Click here

REPLACE FUEL MAIN VALVE ASSEMBLY (FOR HIGH PRESSURE) Click here

PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP DUTY RATIO)

Install the fuel pressure gauge (for low pressure line of low pressure side).

Click here
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump Duty Ratio / Data List / Fuel Pressure (Low).

Powertrain > Engine > Active Test

Active Test Display

Control the Fuel Pump Duty Ratio

Data List Display

Fuel Pressure (Low)

Read the values in the Data List using the GTS and the fuel pressure gauge when the Active Test was performed.

Result

GTS Operation	Result	Proceed to
Low to High	Data List value does not change, but fuel pressure gauge changes	A
Low to High	Data List value and fuel pressure gauge do not change	B

Tech Tips

Perform "Inspection After Repair" after replacing the fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side).

Click here

REPLACE FUEL PRESSURE SENSOR (FUEL DELIVERY PIPE WITH SENSOR SUB-ASSEMBLY) (FOR LOW PRESSURE SIDE) Click here

REPLACE FUEL PUMP CONTROL ECU Click here

READ VALUE USING GTS (FUEL PRESSURE (LOW))

Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Fuel Pressure (Low).

Powertrain > Engine > Data List

Tester Display

Fuel Pressure (Low)
Record the Fuel Pressure (Low) value.
Turn the engine switch off.
Discharge the fuel pressure.

Tech Tips

DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.
1. Remove the EFI-MAIN NO. 2 fuse from the engine room relay block and junction block assembly.
2. Start the engine.
3. After the engine has stopped on its own, turn the engine switch off.
  
  Tech Tips
  
  If the engine does not stop naturally, perform direct injection by racing the engine to reduce the fuel pressure [Fuel Pressure (High)] and stop the engine.
4. Crank the engine again and make sure that the engine does not start.
5. Install the EFI-MAIN NO. 2 fuse.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Fuel Pressure (Low).

Powertrain > Engine > Data List

Tester Display

Fuel Pressure (Low)

Compare the Fuel Pressure (Low) value recorded with the engine running to the Fuel Pressure (Low) value currently shown on the GTS.

Result

Result	Proceed to
Fuel Pressure (Low) value drops	A
Fuel Pressure (Low) value is maintained	B

Tech Tips

Perform "Inspection After Repair" after replacing the fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side).

Click here

REPLACE FUEL PRESSURE SENSOR (FUEL DELIVERY PIPE WITH SENSOR SUB-ASSEMBLY) (FOR LOW PRESSURE SIDE) Click here

PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP DUTY RATIO)

Install the fuel pressure gauge (for low pressure line of low pressure side).

Click here
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump Duty Ratio / Data List / Fuel Pressure (Low).

Powertrain > Engine > Active Test

Active Test Display

Control the Fuel Pump Duty Ratio

Data List Display

Fuel Pressure (Low)

Compare the values in the Data List using the GTS and the fuel pressure gauge when the Active Test was performed.

Standard

GTS Operation	Standard
Low	Data List value and fuel pressure gauge are within +/-50 kPa of each other
High

Tech Tips

Perform "Inspection After Repair" after replacing the fuel pressure sensor (fuel delivery pipe with sensor sub-assembly) (for low pressure side).

Click here

Result

Proceed to
OK
NG

REPLACE FUEL PRESSURE SENSOR (FUEL DELIVERY PIPE WITH SENSOR SUB-ASSEMBLY) (FOR LOW PRESSURE SIDE) Click here

CLEAR DTC

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs.

Powertrain > Engine > Clear DTCs

Turn the engine switch off and wait for at least 30 seconds.

Result

Proceed to
NEXT

CHECK WHETHER DTC OUTPUT RECURS (DTC P107A2A OR P107A64)

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: P107A2A or P107A64.

Check the DTC judgment result.

Result

Proceed to

NORMAL

(DTCs are not output)

ABNORMAL

(DTC P107A2A or P107A64 is output)

CHECK FOR INTERMITTENT PROBLEMS Click here

REPLACE ECM Click here