DTC B1178 Infiniti
No Crank Reference Signal to PCM
No Crank Reference Signal to PCM
Description
Engine cranking, vacuum signals present; and the PCM detected from 3-8 CMP Sensor signals without detecting a CKP Sensor signal
Cause and Solution
CKP Sensor signal circuit is open or groundedCKP Sensor VREF circuit is open or groundedTone wheel or flex plate damage or erratic CKP Sensor signalsCKP Sensor is damaged or has failedPCM has failed
Video Guide
Diagnostic Info
- DTC Code: B1178
- Brand: Infiniti