CHECK HARNESS BETWEEN FUEL PUMP CONTROL UNIT AND FUEL PUMP CONNECTOR.

Measure the resistance of harness between fuel pump control unit and chassis ground.

Connector & terminal

(R122) No. 6 — Chassis ground:

(R122) No. 4 — Chassis ground:

QUESTION

Is the resistance more than 1 MΩ?

Yes No

Repair the ground short circuit between fuel pump control unit and fuel pump.