Diesel Data: Automotive Repair

DD9 Check Pump Motor







- Disconnect 7-pin plug on pump motor relay and remove relay.

Relay Terminals:





- Check continuity from pin S0 on 7-pin side to pin S0 on 4-pin side of relay.

- Is continuity present?

YES -- Go to DD10. DD10 Check Pump Motor Relay

NO -- Replace pump motor relay.