Cooldown Test Sensor Failure - Mtc; Cooldown Time Excessive Fault - Mtc - Chrysler Town and Country 2003 Owner's Manual

HEATING & A/C
Symptom List:

COOLDOWN TEST SENSOR FAILURE - MTC

COOLDOWN TIME EXCESSIVE FAULT - MTC

Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be COOLDOWN TEST SENSOR
FAILURE - MTC.
When Monitored and Set Condition:
COOLDOWN TEST SENSOR FAILURE - MTC
When Monitored: When executing the Cooldown Test.
Set Condition: This message will be displayed if a fault is detected with the Evaporator
Temperature Sensor/circuit when executing the Cooldown Test.
COOLDOWN TIME 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.
HVAC DTC(S) PRESENT
CHECK THE PCM/ECM FOR DTCS
A/C SYSTEM TESTING
TEST
1 CAUTION: The evaporator temperature must be above 12.7°C (55°F) and the
work area ambient temperature must be above 21.1°C (70°F) to test A/C
system operation.
Turn the ignition on.
With the DRBIII , read HVAC DTCs.
Does the DRBIII display any HVAC DTCs?
Yes → Return to the symptom list and choose the symptom(s).
→ Go To 2
No
POSSIBLE CAUSES
ACTION
After repair is complete, rerun the Cooldown Test.
Perform BODY VERIFICATION TEST - VER 1.
534
APPLICABILITY
All