C0040 on Honda
Right front wheel speed sensor circuit (GM) or brake lamp switch (Honda)
Severity: Inspect soon
On GM, Saab service information says the brake module then switches off ABS, traction and stability control for the ignition cycle; a Honda owner reports hot brakes from a stuck brake switch.
It gets more serious if:
- Stop: Stop and have it inspected if the red BRAKE light is on, the brake pedal feels different, or a wheel smells hot or smokes.
This page covers only what differs on Honda. For what C0040 means, the ranked causes and the test order, see the C0040 guide.
What's different on Honda
HondaYour car
2020 · Pilot
Supported by vehicle dataAn owner quotes the dealer reading C0040-62 as a brake lamp switch failure.
Sources and review
- NHTSA complaint ODI 11645269: 2020 Honda Pilot warning lights and brakes
- DTC C0035, C0040, C0045, or C0050 (9-5 9650 2011)
- NHTSA complaint ODI 11191073: 2018 Honda CR-V hot left front brake
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error