OBD-II code · Chassis
C0598 Brake System Control Module B Performance
Brake system control module B reports a performance fault — internal self-diagnostic flagged a problem.
Is it safe to drive with C0598?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyModule internal fault
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Bscm B
Related codes
- C0597Brake System Control Module A Performance
- C0595Brake Booster Internal Power Driver Range/Performance
- C0596Brake Booster Motor A Current Sensor Circuit Range/Performance
- C0599Brake Booster Control Module Missing Calibration
- C059APower Steering Control Module - Rear Missing Calibration
- C059BBrake Pressure Sensor B Missing Calibration
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.