| CHECK AUTO A/C CONTROL MODULE. |
|
1) Turn the fan dial to OFF. 2) Disconnect the power transistor connector. 3) Use a tester to measure the resistance between the power transistor connector and chassis ground. Connector & terminal (B57) No. 2 — Chassis ground: |
| QUESTION | |
|
Is the resistance changed between when the fan dial is OFF and otherwise? | |
| Yes | No |
|
Replace the power transistor. |
Replace the auto A/C control module. |
