CHECK WIRING HARNESS.

1) Disconnect the collation CM connector and the oscillator connector.

2) Using a tester, check continuity between the oscillator connector and collation CM connector.

Connector & terminal

(D55) No. 10 — (B421) No. 33:

(D55) No. 5 — (B421) No. 34:

QUESTION
Is there continuity?
Yes	No
	Repair or replace the open circuit of harness.