Diesel Data: Automotive Repair

JJ14 Check Pump Motor Operation







- Reconnect pump motor relay to pump and wire harness.

- Jumper pins 15, 34 and 60 at breakout box.

- Turn ignition switch to RUN position.

- Does pump motor run?

YES -- Go to JJ23. JJ23 DTC 64

NO -- Go to JJ15. JJ15 Check Pump Motor Operation