C062CBrake Booster Motor B Performance
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- C062C judges whether the second drive, B, of an electric brake booster moves as commanded; the circuit may be intact. Boosters like Bosch's iBooster turn motor torque through a three-stage gear into force on the master cylinder, and in redundant layouts such as a Hyundai Mobis design a dual-winding motor is fed by two power modules, each able to carry the whole current command alone if the other is declared failed. No maker documents C062C publicly. The yardstick is its twin C0594 for motor A: GM's 2016 hybrid tables flag a motor below 15 rad/s while more than 25 rad/s is requested, more than seven direction changes, or reverse rotation above 40 rad/s, within 0.15 s, Type A. With side B out, assist may still come from side A only.
- What you may notice
- Brake system or brake assist warning
- Harder pedal or reduced assist in some situations
- Driver assistance functions with automatic braking restricted
- Likely causes
- PossibleWorn or damaged motor B, for example bearing or winding damage
- PossibleFault in the power module or driver stage feeding side B
- RareBinding in gear stage or booster mechanism
- RareBooster control software needing an update
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.