D3 Check Circuits 499 (GY/BK) and 496 (O) at Jumper Harness

- Disconnect jumper harness from anti-lock brake control module.

- Check for broken or damaged wire in jumper between pin 1 (16-pin side) and pin 13 (15-pin side) or between pin 6 (16-pin side) and pin 5 (15-pin side).

- Are both wires OK?

YES -- Go to D4. D4 Check Left Rear ABS Sensor Circuits

NO -- Service or replace broken or damaged wire in jumper.