C0163Left Rear ABS Outlet Solenoid Circuit Malfunction
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- None of the reachable J2012 lists, maker indexes or NHTSA bulletins mention C0163, so its use cannot be shown for any vehicle. The title names the outlet solenoid of the left rear brake, the valve that opens during anti-lock control to dump caliper pressure toward the return pump and lets the wheel recover. If it cannot open, the rear wheel may lock; if it sticks open, the rear brake loses pressure during regulation. Electrically, controllers verify the coil with short current pulses: MOTOR describes the ATE module checking every outlet and inlet coil in a fixed sequence and flagging the missing one, and the Toyota/Denso patent cuts all valve power through a relay after such a finding. Bosch places these valves together with the pump in the hydraulic unit.
- What you may notice
- ABS warning lamp on
- Unstable rear axle under hard braking without ABS
- Likely causes
- LikelyRear left outlet coil open or shorted
- PossiblePoor contact at the hydraulic unit connector
- RareOutlet valve mechanically stuck by contaminated fluid
- Repair
- Hard · Usually a job for a workshop.Typical cost: €400 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.