C0040
Medium severityRight Front Wheel Speed Sensor Circuit
Quick answer
C0040 (Right Front Wheel Speed Sensor Circuit) means: A wheel speed sensor fault affecting ABS/traction systems. Diagnose soon; normal brakes work but ABS may be off. Typical Malaysia repair cost: RM200–RM800 (approximate).
Symptoms
- •ABS/traction warning lights
- •ABS may be disabled
Likely causes
- •Faulty wheel speed sensor
- •Damaged wiring
- •Dirty/damaged tone ring
Can I drive?
Diagnose soon; normal brakes work but ABS may be off.
Estimated repair cost (Malaysia)
RM200–RM800 (approximate)
This is general information, not a diagnosis. AutoMalaya OBD helps explain your car’s actual scan data; a qualified mechanic may still need to inspect the vehicle.