Possible causes
– Faulty Left Rear Wheel Speed Sensor
– Left Rear Wheel Speed Sensor harness is open or shorted
– Left Rear Wheel Speed Sensor circuit poor electrical connection
– Left Rear Wheel Speed Sensor harness is open or shorted
– Left Rear Wheel Speed Sensor circuit poor electrical connection
Symptoms
– Antilock Brake System (ABS) warning light ON
C0045 CHEVROLET Description
The wheel speed sensor (WSS) receives ignition voltage from the Electronic Brake Control Module (EBCM) and provides a DC square wave signal back to the module. As the wheel spins, the EBCM uses the frequency of the square wave signal to calculate the wheel speed.
CHEVROLET Technical Service Bulletins for C0045 code
2008 CHEVROLET EXPRESS SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
2009 CHEVROLET EXPRESS SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
2010 CHEVROLET EXPRESS SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
2009 CHEVROLET TRAVERSE SERVICE BRAKES, HYDRAULIC:ANTILOCK:ABS WARNING LIGHT
2009 CHEVROLET TRAVERSE SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
2009 CHEVROLET TRAVERSE ELECTRICAL SYSTEM
2009 CHEVROLET TRAVERSE ELECTRICAL SYSTEM:WIRING
2004 CHEVROLET MALIBU SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR
2006 CHEVROLET EQUINOX SERVICE BRAKES, AIR:ANTILOCK
2007 CHEVROLET EQUINOX SERVICE BRAKES, AIR:ANTILOCK