CHECK WIRING HARNESS.

1) Disconnect the passenger room rear antenna connector and the collation CM connector.

2) Using a tester, check continuity between the passenger room rear antenna connector and chassis ground.

Connector & terminal

(R297) No. 1 — (B421) No. 15:

(R297) No. 3 — (B421) No. 16:

QUESTION

Is there continuity?

Yes No

Repair or replace the open circuit of harness.