Circuit/System Verification
WARNING: This page is about a different variant/trim than selected.
NOTE:
You must perform Circuit/System Verification before proceeding with Circuit/System Testing .
- Ignition ON.
- Observe the DTC information with a scan tool. Verify DTC P0641 is not set.
- If DTC P0641 is set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle for further diagnosis.
- If DTC P0641 is not set
- If DTC P0641 is set
- Engine Cranking.
- Observe the Fuel Rail Pressure Sensor parameters with a scan tool. The pressure should be greater than 10 MPa (1450 psi).
- If 10 MPa (1450 psi) or less
Refer to Circuit/System Testing .
- If greater than 10 MPa (1450 psi)
- If 10 MPa (1450 psi) or less
- Engine Idling.
- Observe the Fuel Rail Pressure Sensor parameters with a scan tool. The Fuel Rail Pressure should be close to the Desired Fuel Rail Pressure.
- If pressures are not close
Refer to Circuit/System Testing .
- If pressures are close
- If pressures are not close
- Increase engine speed to 1800 RPM.
- Observe the Fuel Rail Pressure Sensor parameters with a scan tool. The Fuel Rail Pressure should be close to the Desired Fuel Rail Pressure.
- If pressures are not close
Refer to Circuit/System Testing .
- If pressures are close
- If pressures are not close
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
- If the DTC resets
Refer to Circuit/System Testing .
- If the DTC does not reset
- If the DTC resets
- All OK.