Dodge Ram 2004 Service Manual page 397

COOLDOWN TEST SENSOR FAILURE —
TEST
2 CAUTION: The evaporator temperature must be above 12.7°C (55°F) to test
A/C system operation.
Turn the ignition on.
With the DRBIII , check the PCM for any DTCs.
Are any DTCs present?
Yes → Refer to Powertrain Diagnostic Information. After the repair is
→ Refer to the Service Information for additional Cooldown Test
No
ACTION
complete, with the DRBIII , erase the DTC(s). Cycle the ignition
switch. Start the engine. Set the blower control to high speed.
With the DRBIII , actuate the Cooldown Test.
Perform BODY VERIFICATION TEST - VER 1.
related diagnostic information and testing procedures.
Perform BODY VERIFICATION TEST - VER 1.
Continued
383
HEATING & A/C
APPLICABILITY
All