Blower Not On High - Dodge Ram 2004 Service Manual

Symptom:

BLOWER NOT ON HIGH

When Monitored and Set Condition:
BLOWER NOT ON HIGH
When Monitored: When executing the Cooldown Test.
Set Condition: This message will be displayed if the blower is not operating at high speed
while the Cooldown Test is running.
CHECK FOR HVAC DTCS
TEST SET UP CONDITIONS NOT MET
BLOWER/RELATED CIRCUITS
TEST
1 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). After the
→ Go To 2
No
2 Was the blower control set to high speed the entire time the Cooldown Test was
actuated?
Yes → Check the blower motor and related circuits for blower operation
→ Start the engine. Set the blower control to high speed. With the
No
POSSIBLE CAUSES
ACTION
repair is 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.
problems. Repair as necessary. After repair is complete, start the
engine. Set the blower control to high speed. With the DRBIII ,
actuate the Cooldown Test.
Perform BODY VERIFICATION TEST - VER 1.
DRBIII , actuate the Cooldown Test.
Perform BODY VERIFICATION TEST - VER 1.
381
HEATING & A/C
APPLICABILITY
All
All