Possible Causes
NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.
- Faulty crankshaft position sensor
- Crankshaft position sensor harness is open or shorted
- Poor electrical connection in crankshaft position sensor circuit
Description
The engine control module (ECM) monitors the crankshaft position/top dead center sensor. The diagnostic trouble code (DTC) is set when the ECM detects a malfunction in the crankshaft position (CKP)/top dead center (TDC) sensor circuit.
How to Repair
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Illuminated engine light (or service engine soon warning light illuminated)