Operation CHARM: Car repair manuals for everyone.

System Overvoltage

NAME OF CODE
- System Overvoltage

WHEN MONITORED
Ignition on.

SET CONDITION
The Control Antilock Brake (CAB) monitors the fused B+ circuit output at all times for proper system voltage. If the voltage is above 19 volts at cavity 9, the trouble code is set.

POSSIBLE CAUSES
- Charging system output voltage too high
- Improper jump starting vehicle