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Cooldown Test Too Cold to Start

Tests 1 - 2:




Tests 3 - 6:




Test 7:





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 °C (55 °F) when executing the Cooldown Test.

POSSIBLE CAUSES
- Evaporator temperature too low
- HVAC DTC(s) present
- Check the PCM/ECM for DTC's
- Evaporator temperature sensor
- Sensor ground circuit high resistance
- Evaporator temperature sensor signal circuit high resistance
- A/C - heater control module