ATC Function Test Failure

Test 1 - 3:

SYMPTOM
ATC FUNCTION TEST FAILURE

TEST NOTE
This symptom is diagnosed using the test ATC FUNCTION TEST COOL FAILURE.

WHEN MONITORED
With the engine running.

SET CONDITION
This DTC will set if specific operating criteria are not met when attempting to run the ATC Function Test.

POSSIBLE CAUSES
- ATC function test operating criteria not met
- Automatic temperature control (ATC) DTC(s) present
- Engine control module DTC(s) present
- Criteria to run ATC function test not met and no DTCs present