Brake System Indicator Circuit Troubleshooting

Brake system indicator does not come on
1. Disconnect the multiplex control unit 13P (underdash fuse/relay box Y) connector and the ABS modulator-control unit 47P connector.





2. Check for continuity between the ABS modulator control unit 47P connector terminal No. 13 and body ground.
Is there continuity?
YES - Repair short to body ground in the wire between the multiplex control unit and the ABS modulator-control unit.
NO - Do the multiplex control system troubleshooting.