Blend/Mode/Recirc Door Operation Improper -- Dual-Zone - Dodge Ram 2004 Service Manual

HEATING & A/C
Symptom:
*BLEND/MODE/RECIRC DOOR OPERATION IMPROPER -- DUAL-
ZONE
CHECK FOR ACTUATOR CIRCUIT TEST FAULT MESSAGES
CHECK FOR ACTIVE HVAC DTCS
CHECK FOR HVAC DOOR RECALIBRATION FAULT MESSAGES
MODE DOOR ACTUATOR(S)/LINKAGE(S)/DOOR(S)
PASSENGER BLEND DOOR ACTUATOR/LINKAGE/DOOR
DRIVER BLEND DOOR ACTUATOR/LINKAGE/DOOR
RECIRCULATION DOOR ACTUATOR/LINKAGE/DOOR
TEST
1 NOTE: All Actuator Circuit Test fault messages and Overcurrent DTCs must
be repaired before diagnosing Calibration fault messages.
Turn the ignition on.
With the DRBIII in HVAC, System Tests, actuate the Actuator Circuit Test.
Does the DRBIII display any Actuator Circuit Test fault messages?
Yes → Return to the symptom list and choose the symptom(s).
→ Go To 2
No
2 NOTE: All Actuator Circuit Test fault messages and Overcurrent DTCs must
be repaired before diagnosing Calibration fault messages.
Turn the ignition on.
With the DRBIII , read active HVAC DTCs.
Does the DRBIII display any active HVAC DTCs?
Yes → Return to the symptom list and choose the symptom(s).
→ Go To 3
No
3 NOTE: All Actuator Circuit Test fault messages and Overcurrent DTCs must
be repaired before diagnosing Calibration fault messages.
Turn the ignition on.
With the DRBIII in HVAC, System Tests, actuate the HVAC Door Recalibration
Test.
Does the DRBIII display any HVAC Door Recalibration fault messages?
Yes → Return to the symptom list and choose the symptom(s).
→ Go To 4
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
402
APPLICABILITY
All
All
All