Drive DTCC0040 – Wheel speed sensor problem (right front)
Right front wheel speed sensor circuit
Brakes, ABS and chassis · generic OBD-II code
You can drive it, but take it easy and get it looked at soon – waiting usually makes the repair bigger.
Check this first
Look at the sensor wiring at the wheel – it flexes over every bump and breaks there first. ABS and traction control switch off with this code, so allow more room.
Reading ABS codes needs the brand pack for your make.
What usually fixes it
In the order a good shop checks them. Typical total: $124–$1,006 at $130 an hour.
Wheel speed sensor
Sensors fail from road salt and heat.
Wiring at the wheel
The wire flexes with the suspension until it breaks.
Tone ring or bearing
A cracked tone ring or worn bearing upsets the signal.
What the vehicle can tell you itself
A stored code is a headline, not the story. The vehicle also holds the conditions when it happened, how close the part is to the limit it fails at, what the fuel trims are doing, and whether the fault is still happening right now. Drive DTC reads all of it with a USB adapter and a Windows PC – and it can't change a single setting on the vehicle.
See what your vehicle says about C0040
Codes in plain English, what usually causes them, what the repair costs, and whether it's safe to drive.