CHECK GROUND CIRCUIT FOR ECM.

1) Disconnect the connectors from the ECM.

2) Measure the resistance of harness between ECM and chassis ground.

Connector & terminal

(B134) No. 3 — Chassis ground:

(B134) No. 4 — Chassis ground:

(B135) No. 3 — Chassis ground:

(B135) No. 4 — Chassis ground:

(B135) No. 5 — Chassis ground:

(B135) No. 7 — Chassis ground:

(B136) No. 6 — Chassis ground:

(B137) No. 6 — Chassis ground:

(B137) No. 7 — Chassis ground:

QUESTION

Is the resistance less than 5 Ω?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

• Open circuit in harness between ECM and engine ground termanal

• Poor contact of coupling connector