E2 Check Circuit 539

- Disconnect pump motor relay from 4-pin plug.

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

- Check for continuity between breakout box pins 15 and 60.

- Is continuity present?

YES -- Service circuit 539 (PK/LB) for short to ground.

NO -- Replace pump motor relay.