C0040 on Chevrolet Vehicles: Right Front Wheel Speed Sensor Circuit
The ABS module isn't getting a usable signal from the passenger-side front wheel speed sensor. C0040 →
5Complaints mentioning the code
#1Rank among 2 brands
0.4%Share of Chevrolet DTC complaints
In NHTSA owner complaints we analyzed for Chevrolet, C0040 was mentioned 5 times.
Most mentioned models
| Chevrolet Express 2500 12 Passenger | 1 | |
|---|---|---|
| Chevrolet Impala | 1 | |
| Chevrolet Malibu Hybrid | 1 | |
| Chevrolet Silverado | 1 | |
| Chevrolet Silverado 1500 | 1 |
Model years mentioned
Components named in these complaints
- Service Brakes (3)
- Suspension (2)
- Traction Control System (2)
- Hydraulic (1)
- Electronic Stability Control (esc) (1)
Reports with a crash: 1 · fire: 0 · injuries: 2
Often appears together with
C0035
Chassis
The ABS module lost a valid signal from the driver-side front wheel speed sensor.
Moderate
C0050
Chassis
The ABS module can't trust the passenger-side rear wheel speed signal and has shut ABS off.
Moderate
U0126
Network
Modules no longer receive the steering wheel angle, so stability control and lane assist switch…
Moderate
Possible causes
- Worn front hub bearing with built-in sensor or damaged magnetic encoder (common on hub-integrated designs)
- Harness chafed on the strut, brake hose bracket or inner fender, or pulled by suspension travel
- Failed right front sensor element
- Water and salt in the connector behind the passenger-side wheel liner
Related codes
Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.