Cooldown Test Excessive Fault

Test 1:

Test 2:

SYMPTOM
COOLDOWN TEST EXCESSIVE FAULT - MTC

WHEN MONITORED
When executing the Cooldown Test.

SET CONDITION
This message will be displayed if the A/C system is unable to bring the evaporator temperature down 6.7 °C (20 °F) within two minutes.

POSSIBLE CAUSES
- HVAC DTC(s) present
- Check the PCM/ECM for DTC's
- A/C system testing