ATC Switch Failed

Test 1:

SYMPTOM
ATC SWITCH FAILED

WHEN MONITORED
Ignition ON.

SET CONDITION
The BCM interfaces with the A/C head over the PCI bus. If an A/C switch is held in the closed position longer than 5-10 minutes, a switch failed code will be set.

POSSIBLE CAUSES
- ATC head erase DTC- reset
- ATC head switches stuck