9B Check RPM Signal While Cranking
9b. Check RPM Signal While Cranking
Purpose:
To determine if the CMP sensor and circuit are functioning.
Recommended Procedure:
Possible Causes:
- Weak battery or starter
- Faulty wire harness connection
- Poor CMP ground connection
- Incorrect CMP sensor to target wheel spacing
- Defective CMP sensor
Refer to Pinpoint Test DF for CMP sensor diagnosis. DF - Camshaft Position (CMP) Sensor
Tools Required:
New Generation Star (NGS) Tester 007-00500 or equivalent