CHECK A/C ON SIGNAL CIRCUIT.

1) Disconnect the connectors from the ECM.

2) Measure the resistance between the ECM and the auto A/C control module connector.

Connector & terminal

2.0 L model:

(B136) No. 26 — (i49) No. 17:

2.5 L model:

(B136) No. 24 — (i49) No. 17:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the harness between the auto A/C control module and ECM.