Speedometer and VSS Symptom Diagnosis

SPEEDOMETER AND VSS SYMPTOM DIAGNOSIS REFERENCE

Condition	Possible Cause	Action
Speedometer shows no operation or incorrect operation	Circuit fuse blown	Replace fuse and check for short circuit.
	Front wheel speed sensor or sensor encoder faulty (M/T model)	Check front wheel speed sensor or senso encoder referring to FRONT AND REAR WHEEL SPEED SENSOR ON-VEHICLE INSPECTION or FRONT WHEEL SPEED SENSOR ENCODER ON-VEHICLE INSPECTION .
	Wiring or grounding faulty	Repair circuit .
	Combination meter faulty	Replace combination meter .
	ECM faulty	Replace after making sure that none of above parts is faulty .