CHECK WIRING HARNESS.

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

2) Using a tester, check continuity between the center passenger room antenna connector and the collation CM connector.

Connector & terminal

(R298) No. 1 — (B421) No. 13:

(R298) No. 3 — (B421) No. 14:

QUESTION

Is there continuity?

Yes No

Repair or replace the open circuit of harness.