Possible Causes
NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.
- Faulty Camshaft Position (CMP) Sensor
- Faulty Crankshaft Position Sensor
- Camshaft Position Sensor Harness is Open or Shorted
- Poor Electrical Connection in Camshaft Position Sensor Circuit
- Faulty Engine Control Module (ECM)
- Incorrect Engine Timing
What Does This Mean?
Technical Notes
Description
This error code is stored in the Engine Control Module (ECM) when the input signal from the Camshaft Position (CMP) Sensor is not within the operating range. There may be a timing issue between the Camshaft Position Sensor and the Crankshaft Position Sensor, and they should be tested with an oscilloscope.
This Diagnostic Trouble Code (DTC) can be caused by a faulty Camshaft Position Sensor, incorrect camshaft/crankshaft correlation, a fault in the Camshaft Position Sensor circuit, incorrect engine timing, and/or a faulty Engine Control Module. Additionally, any mechanical fault can also cause this DTC.
How to Fix
Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine Light On (or Service Engine Soon Warning Light)