P1021

P1021-CYLINDER 1 OIL SUPPLY SOLENOID VALVE COMPONENT DAMAGE

For a complete wiring diagram, refer to the Wiring Information.





- When Monitored:
Continuously with the ignition on and no battery voltage DTCs present.

- Set Condition:
The Powertrain Control Module (PCM) internal Solenoid driver programming has failed. One trip fault.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.

Diagnostic Test
POWERTRAIN CONTROL MODULE

View repair

Repair

- Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Powertrain Control Module.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.