Normal Operation
The active brake booster has internal solenoids that assist driver brake applications or can apply the brakes when needed.
Power is supplied by the anti-lock brake system (ABS) module along circuit 1582 (LG/RD). Ground is provided by the ABS module along circuit 1583 (BN/WH).
Possible Causes
- Circuit open
- Circuit shorted
- Active brake booster
- Anti-lock brake system (ABS) module