VOLVO
ABS-00C2 - Reversing signal. Unreasonable signal
System
Anti-lock Braking System (ABS)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007)
Show models by year and engine (4)
What does this fault code mean?
The reversing signal tells the ABS control module that the car is in reverse. The module has registered a signal that does not fit the other conditions, so the code is set. This code applies only to cars with stability control, and anti-spin and stability are blocked while it is present.
Possible causes
- Faulty signal from the reversing light sensor or switch
- Short or open circuit in the reversing signal wire
- Faulty ABS control module
What you can do
- 1Check that the reversing lights work when reverse gear is selected
- 2Check the connectors at the gear selector and the reversing signal for poor contact and oxidation
- 3Follow the reversing signal wire and look for an open circuit or a short to ground or supply voltage
- 4Clear the code and road test in reverse to see whether it returns
- 5If the fault remains, have a workshop with diagnostic equipment check the signal and the ABS control module
- 6ABS and stability control are safety-critical – do not work on the ABS module or the brake system yourself, have a workshop do it
Symptoms you may notice3
- Anti-spin does not work
- Stability function is absent
- Anti-spin warning lamp lit
What the fault can affect2
- Anti-spin function is blocked
- Stability function is blocked
General guidance for car owners. Diagnosis on the car can point to a different cause.