CHECK GROUND CIRCUIT.

Measure the resistance between harness connector terminal and chassis ground.

Connector & terminal

(i84) No. 28 — Chassis ground:

(B280) No. 17 — Chassis ground:

(B281) No. 20 — Chassis ground:

(B279) No. 27 — Chassis ground:

QUESTION

Is the resistance less than 10 Ω?

Yes No

The power supply and ground circuit are OK.

Repair or replace the harness.