Diagnostic Test
- DTC IS ACTIVE NOTE:
If P045A-00, P0045B-00, P045C-00, or P045D-00 are present, perform the Diagnostics for those DTCs before continuing with this one.
- Ignition on, engine not running.
- With the scan tool, erase DTCs in the Powertrain Control Module (PCM).
- Test drive the vehicle while monitoring the scan tool.
- With the scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
- Go To 2
No
- Perform the INTERMITTENT DTC diagnostic procedure. Refer to INTERMITTENT CONDITION .
- EGR VALVE ASSEMBLY
- Turn the ignition off.
- Reconnect the PCM C2 harness connector.
- Replace the EGR Valve Assembly in accordance with the service information.
- Ignition on, engine not running.
- With the scan tool, erase DTCs in the Powertrain Control Module (PCM).
- Test drive the vehicle while monitoring the scan tool.
- With the scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
- Go To 3
No
- Test complete.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- POWERTRAIN CONTROL MODULE (PCM)
- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the EGR Valve Assembly and the Powertrain Control Module (PCM).
- Look for any chafed, pierced, pinched, or partially broken wires.
- Look for broken, bent, pushed out or corroded terminals.
- Perform any Technical Service Bulletins that may apply.
Were any problems found?
Yes
- Repair as necessary.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Replace the Powertrain Control Module (PCM) in accordance with the service information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .