Check Wire Between Brake On/Off Switch & ABS Control Module
- With ignition switch in OFF position, connect breakout box with adapter to ABS control module connector. Leave ABS control module disconnected.
- Depress brake pedal and measure voltage on breakout box pin No. 2. If reading is greater than 10 volts, ABS is okay. If reading is less than 10 volts, service Yellow wire between brake on/off switch and ABS control module.