Code P1371 Cadillac Description
The Cadillac diagnostic trouble code P1371 (DTC) indicates a missing low resolution signal, specifically related to the crankshaft position sensor (CKP) in the engine. The CKP sensor is responsible for detecting the position of the crankshaft to provide essential data to the engine control module (ECM) for ignition timing and fuel injection. When the ECM does not receive a proper signal from the CKP sensor, it can lead to incorrect ignition timing, potential misfires, and poor overall engine performance.
Common Causes of Cadillac Code P1371
NOTE: The listed causes may not be a complete list of all potential issues, and there could be other causes.
- Faulty crankshaft position sensor
- Wiring issues or loose connections in the CKP sensor circuit
- Problems with the ECM or related components
- Incorrect installation or alignment of the CKP sensor
- Engine mechanical issues affecting the CKP sensor signal
Symptoms of P1371 Cadillac
- Engine misfires or rough idling
- Poor fuel efficiency
- Difficulty starting the engine
- Engine stalling or hesitation
- Illuminated check engine light
How to Fix Cadillac Code P1371
- Diagnose the issue using a scan tool to check for the P1371 code and look for related codes.
- Inspect the CKP sensor and its wiring for any damage, corrosion, or loose connections.
- Test the CKP sensor output signal using a multimeter to ensure it meets specifications.
- Replace the CKP sensor if it is faulty, ensuring proper alignment during installation.
- Clear the DTC and perform a road test to verify the issue has been resolved.