C0158Left Rear ABS Inlet Solenoid Circuit Malfunction
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- C0158 is publicly undocumented: it appears in no accessible J2012 table, NHTSA bulletin or manufacturer index. Saab, for example, reports the rear left valve group under C2415 instead. The title points to the electrical circuit of the inlet solenoid for the left rear brake. That valve stays open during normal braking and closes when the rear wheel starts to lock, trapping pressure in the caliper. Toyota and Denso patented a routine check that tests every actuator solenoid for breaks and shorts, raises a fault flag, lights the warning lamp and trips a cut-off relay so the brakes revert to plain pedal operation. MOTOR's measurements on the ATE system add that a coil with wrong resistance reaches its current limit too fast or too slowly.
- What you may notice
- ABS warning lamp on, anti-lock switched off
- Rear wheels can lock under hard braking
- Likely causes
- LikelyRear left inlet coil open, shorted or with wrong resistance
- PossibleCorrosion at the hydraulic unit connector
- RareFailed output stage in the control module
- 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.