A1 Check Power to Anti-Lock Brake Control Module

- Disconnect 55-pin plug from anti-lock brake control module.

- Connect EEC-IV Breakout Box 014-00322 with Anti-Lock Test Adapter T90P-50-ALA or equivalent to the anti-lock 55-pin plug wiring harness.

- Set multi-meter to read volts DC.

- Turn ignition switch to the ON position.

- Measure voltage between breakout box pins 53 and 60.

- Is voltage above 10 volts?

YES -- Go to A5. A5 Check Ground

NO -- Go to A2. A2 Check ABS Control Module to Ground Wire