C0040
Right Front Wheel Speed Sensor Circuit
2001-2011 Mazda Tribute 2.3L I4
Moderate SeverityChassisGeneric (SAE)
The 2001-2011 (11-year production run) Mazda Tribute is equipped with a 2.3L inline-4 engine. Below you'll find detailed c0040 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Malfunction in the right front ABS wheel speed sensor.
Symptoms
- ABS light on
- Traction control light on
- ABS inactive
Common Causes
- Faulty sensor
- Tone ring damage
- Wiring issue
- Wheel bearing failure
Diagnostic Steps
- Test sensor
- Inspect tone ring
- Check wiring
- Check bearing
Repair Notes
Replace sensor. Check bearing and tone ring.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0040 on Other Vehicles
Common Questions
What does code C0040 mean on a 2001-2011 Mazda Tribute?
C0040 stands for "Right Front Wheel Speed Sensor Circuit". Malfunction in the right front ABS wheel speed sensor.
What are the symptoms of C0040 on a Mazda Tribute?
Common symptoms of C0040 include: ABS light on, Traction control light on, ABS inactive.
What causes C0040 on a 2001-2011 Mazda Tribute?
Common causes of C0040 include: Faulty sensor, Tone ring damage, Wiring issue, Wheel bearing failure.
Last updated: March 2026