CHECK WIRING HARNESS.

1) Turn the ignition switch to OFF.

2) Disconnect the ID code box connector and the ECM connector.

3) Using a tester, measure the resistance between ID code box connector and ECM.

Connector & terminal

Gasoline engine model (Euro 4)

(B422) No. 5 — (B135) No. 31:
(B422) No. 6 — (B135) No. 23:

Gasoline engine model (Euro 5)

(B422) No. 5 — (B135) No. 12:
(B422) No. 6 — (B135) No. 11:

Diesel engine model

(B422) No. 5 — (B134) No. 50:
(B422) No. 6 — (B134) No. 50:

QUESTION

Is the resistance less than 10 Ω?

Yes No

Repair or replace the harness line between ID code box and ECM.