Operation CHARM: Car repair manuals for everyone.

System Undervoltage

NAME OF CODE:
- System Undervoltage

WHEN MONITORED
Ignition on.

SET CONDITION
The Control Antilock Brake (CAB) monitors the voltage at cavity 23 at all times above 10 km/h (6 mph) for proper system voltage. If the voltage is below 9 volts at cavity 23, the trouble code is set.

POSSIBLE CAUSES
- Charging system output voltage too low
- Loose or corroded terminals in the fused ignition switch circuit