Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

Ignition ON.
Verify DTC P0685, or P1682 are not set.
- If any of the DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If none of the DTCs are set
Verify the parameters listed below display OK or Not Run when commanding the Fuel Pressure Regulator ON and OFF with a scan tool.
- Fuel Pressure Regulator Control Circuit High Voltage Test Status
- Fuel Pressure Regulator Control Circuit Open Test Status
- Fuel Pressure Regulator Control Circuit Low Voltage Test Status
- Fuel Pressure Regulator High Control Circuit High Voltage Test Status
- Fuel Pressure Regulator High Control Circuit Open Test Status
- Fuel Pressure Regulator High Control Circuit Low Voltage Test Status
- If OK or Not Run is not displayed
  Refer to Circuit/System Testing.
- If OK or Not Run is displayed
Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify the DTC does not set.
- If the DTC sets
  Refer to Circuit/System Testing.
- If the DTC does not set
All OK.