Possible causes
– Faulty Left Front ABS Sensor
– Left Front ABS Sensor harness is open or shorted
– Left Front ABS Sensor circuit poor electrical connection
– Faulty Wheel Speed Sensor
– Wheel bearing
– Left Front ABS Sensor harness is open or shorted
– Left Front ABS Sensor circuit poor electrical connection
– Faulty Wheel Speed Sensor
– Wheel bearing
Symptoms
– ABS light ON
FORD Technical Service Bulletins for C1233 code
2004 FORD RANGER ELECTRICAL SYSTEM
2005 FORD RANGER ELECTRICAL SYSTEM
2004 FORD RANGER SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
2000 FORD EXPLORER SPORT SERVICE BRAKES, HYDRAULIC:ANTILOCK:CONTROL UNIT/MODULE
2001 FORD EXPLORER SPORT SERVICE BRAKES, HYDRAULIC:ANTILOCK:CONTROL UNIT/MODULE
2001 FORD EXPLORER SPORT TRAC SERVICE BRAKES, HYDRAULIC:ANTILOCK:CONTROL UNIT/MODULE
2001 FORD RANGER SERVICE BRAKES, HYDRAULIC:ANTILOCK:CONTROL UNIT/MODULE
2002 FORD EXPLORER SPORT SERVICE BRAKES, HYDRAULIC:ANTILOCK:CONTROL UNIT/MODULE
2002 FORD EXPLORER SPORT TRAC ELECTRICAL SYSTEM
2002 FORD RANGER ELECTRICAL SYSTEM