CHECK WIRING HARNESS.

Using a tester, check continuity between the power supply CM connector and chassis ground.

Connector & terminal

(B420) No. 35 — Chassis ground:

(B420) No. 34 — Chassis ground:

(B420) No. 11 — Chassis ground:

QUESTION

Is there no continuity?

Yes No

Repair or replace the short circuit of the harness.