C00712/4 Wheel Drive Status Input
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- Covers the input that tells the ABS/ESC module whether the vehicle is in two- or four-wheel-drive mode. Because four-wheel drive links the axles and changes how wheel speeds relate, the stability and ABS strategy must know the current drive mode; this signal comes from the transfer-case switch, the drive-mode selector or a message from the drivetrain controller. The code is set when that status is missing, implausible or inconsistent with observed wheel behaviour. Subaru documents DTC C0071 in the vehicle dynamics control system with revised troubleshooting. A fault can make the module default to a safe strategy, disable some functions and set the ABS/ESC warning lamp while base braking remains. The entry follows the SAE J2012 generic definition and all-wheel-drive mode-signalling design.
- What you may notice
- Stability or ABS strategy limited
- ABS/ESC warning lamp on
- Drive-mode display incorrect
- Likely causes
- LikelyTransfer-case or mode switch fault
- PossibleMissing drive-mode message on the bus
- RareHarness or connector fault
- Repair
- Medium · Often possible to do yourself.Typical cost: €60 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.