X66 - Check Ground Circuit to ACPSW
- Engine running.
- AC Pressure Switch (ACPSW) disconnected.
- Connect jumper wire between ACPSW circuit at the ACPSW vehicle harness connector and the battery negative post.
- Does the high speed fan now come on?
Yes -- Key "OFF". Service open GND circuit to ACPSW. Reconnect ACPSW. Re-evaluate symptom.
No -- Key "OFF". Go to X67. X67 - Check ACPSW Circuit Continuity to PCM