DTC 82: Sensor Too Cold To Start Cooldown Test: Notes

Fig 1: Evaporator Temperature Sensor Signal Circuit Schematic

Courtesy of CHRYSLER LLC

For complete wiring diagrams refer to:

SYSTEM WIRING DIAGRAMS for 300.
SYSTEM WIRING DIAGRAMS for Charger.

When Monitored:
When executing the Cool down Test.
Set Condition:
If the A/C Heater Control senses that the evaporator temperature is below 18.3°C (65°F) when executing the Cool down Test.

Possible Causes
FAULTS PRESENT IN THE HVAC SYSTEM
EVAPORATOR TEMPERATURE BELOW 18.3°C (65°F) AT START OF COOL DOWN TEST
HIGH RESISTANCE ON (C121) SENSOR GROUND CIRCUIT
HIGH RESISTANCE ON (C21) EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT
EVAPORATOR TEMPERATURE SENSOR
A/C HEATER CONTROL

NOTE: This DTC will display as active if the ignition is not cycled after running the Cool down Test. Otherwise, it will display as stored until cleared.