C001ERight Rear Hydraulic Release Too Long
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- Set when the ABS modulator cannot release pressure at the right rear wheel within the expected time during a control cycle, completing the per-wheel set with C0012, C0016 and C001A. After commanding the right rear outlet valve to dump pressure the module expects wheel speed to recover and line pressure to fall; a release longer than the calibrated limit points to a sticking valve, a restricted hydraulic path or an accumulator or pump that cannot accept fluid. ABS and stability control are disabled and the ABS warning lamp is set. No manufacturer documents this code publicly; the release phase is covered by NHTSA's brake study, the accumulator limit by a patent on low-pressure accumulators.
- What you may notice
- ABS warning lamp on
- ABS and stability control disabled
- Extended or firm pedal during hard braking
- Likely causes
- LikelyOutlet valve sticking or slow
- PossibleRestricted hydraulic path or contaminated fluid
- RarePump or accumulator cannot accept fluid
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €1,800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.