Circuit/System Verification

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

Ignition - On/Vehicle - In Service Mode
Verify DTC P0641 is not set.
- If the DTC is set
  Refer to: DTC P0641, P0651, P0697, or P06A3
- Go to next step: If the DTC is not set
Verify DTC P048D, P048E is not set.
- If any of the DTCs are set
  Replace the component: M122 Exhaust Pressure Regulator Valve
- Go to next step: If none of the DTCs are set
Verify DTC U0650 is not set.
- If the DTC is set
  Refer to: Circuit/System Testing
- Go to next step: If the DTC is not set
Perform the scan tool control function: Exhaust Pressure Control Valve Motor - Command the component to the minimum position/speed
Verify the scan tool parameter: Exhaust Pressure Regulator Valve Position = The parameter value should not change
- Perform the action while monitoring the parameter:
- Wiggle the harness and connector(s): K20 Engine Control Module
- Wiggle the harness and connector(s): M122 Exhaust Pressure Regulator Valve
- If the parameter value changes
  Repair as necessary - Wiring/Terminal(s)/Electrical Connector(s)
- Go to next step: If the parameter value does not change
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
- Go to next step: If the DTC is not set
All OK.