Cooldown Test Too Cold to Start - MTC

Test 1-2:

Test 3-4:

Test 5:

SYMPTOM
COOLDOWN TEST TOO COLD TO START - MTC

WHEN MONITORED
When executing the Cooldown Test.

SET CONDITION
This message will be displayed if the A/C - Heater Control Module sees evaporator temperature below 12.7 degrees C (55 degrees F) when executing the Cooldown Test.

POSSIBLE CAUSES
- Evaporator temperature too low
- HVAC DTC(s) present
- Check the PCM/ECM for DTCs
- A/C - heater control module
- A/C - heater control module
- Evaporator temperature sensor