Brakes and Traction Control

Troubleshooting/Ignition Voltage:

SYMPTOM - Low voltage/high voltage.

PROBABLE CAUSE
- Connection of the 24 V battery for engine start.
- Faulty charging system.
- Open in the IG2 circuit.
- Faulty ABS control unit.

CONDITION FOR DETECTION
When the ignition voltage is lower or higher than a given voltage, the CPU inhibits ABS control and switches off the main relay, and the ABS indicator light comes on. When the ignition voltage recovers to normal range, ABS inhibition is canceled.