CHECK GROUND CIRCUIT FOR ECM.

Measure the resistance of harness between ECM connector and chassis ground.

Connector & terminal

(B134) No. 3 — Chassis ground:

(B134) No. 4 — Chassis ground:

(B134) No. 5 — 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 of harness between ECM and engine ground cable

Poor contact in ECM connector

Poor contact of coupling connector