CHECK HARNESS BETWEEN ECM AND FUEL PUMP CONTROL UNIT CONNECTOR.

1) Disconnect the connector from ECM.

2) Measure the resistance of harness between ECM and fuel pump control unit connector.

Connector & terminal

(B135) No. 33 — (R122) No. 9:

(B136) No. 12 — (R122) No. 8:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

• Open circuit between ECM and fuel pump control unit connector

• Poor contact of coupling connector