DTC P122F: High Pressure Fuel Pump Boost Malfunction (High Temperature) [11/2016 - ]: Procedure
WARNING: This page is about a different variant/trim than selected.
- CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P122F)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
- Read the DTCs.
Powertrain > Engine and ECT > Trouble Codes
Result
Result Proceed to DTC P122F is output A DTC P122F and other DTCs are output B HINT:
If any DTCs other than P122F are output, troubleshoot those DTCs first.
Result:
B
GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2016 - 10/2017] or DIAGNOSTIC TROUBLE CODE CHART [10/2017 - ]
Result:
A
See step 2
- CHECK FREEZE FRAME DATA
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Powertrain > Engine and ECT > Trouble Codes
- Confirm the freeze frame data and check the vehicle conditions at the time the DTC was stored.CONFIRMATION ITEM
Engine Speed MAF MAP Coolant Temp Intake Air Initial Engine Coolant Temp Initial Intake Air Temp Throttle Position ISC Flow ISC Position ISC Feedback Value Electric Load Feedback Val Fuel Press Fuel Pressure Target Value Fuel Pump Duty (D4) HP FP Discharge Rate Injection Way Previous Trip Coolant Temp Engine Oil Temperature Previous Trip Eng Oil Temp Electric Fan Motor - Use this information to perform a simulation test.
- Compare the "Normal Condition" information in the Data List table (reference values) with the freeze frame data listed above and with the simulation test results to determine the problem cause.
Result
Result Proceed to The problem cause can be determined A The problem cause cannot be determined B
Result:
A
REPAIR OR REPLACE MALFUNCTIONING PARTS
Result:
B
CHECK FOR INTERMITTENT PROBLEMS. Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2016 - ]