2001 CHRYSLER VOYAGER Service Manual

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Page 545 of 4284

CHRYSLER VOYAGER 2001 Service Manual NO BCM MESSAGE RECEIVED (STORED) - MANUAL A/C
When Monitored: With the igntion on.
Set Condition: If the A/C - Heater Control Module does not receive the dimming function
message from the BCM for more

Page 546 of 4284

CHRYSLER VOYAGER 2001 Service Manual REAR MODE OVERCURRENT (STORED) - MANUAL A/C
When Monitored: When actuator movement is requested.
Set Condition: All (Blend, Mode, Recirc, and Zone) Overcurrent DTCs will set if the A/C
- Heater Contro

Page 547 of 4284

CHRYSLER VOYAGER 2001 Service Manual POSSIBLE CAUSES
CHECK FOR ACTIVE HVAC DTCS, & COOLDOWN TEST & DOOR RECALIBRATION MESSAGES
STORED CODE(S) TEST COMPLETE
TEST ACTION APPLICABILITY
1NOTE: Active codes must be resolved before diagnosing

POSSIBLE CAUSES
CHECK FOR ACTIVE HVAC DTCS, & COOLDOWN TEST & DOOR RECALIBRATION MESSAGES
STORED CODE(S) TEST COMPLETE
TEST ACTION APPLICABILITY
1NOTE: Active codes must be resolved before diagnosing stored codes.
NOTE: Anytime a code becomes active during this test, proceed to the
conclusion question.
Turn the ignition on.
With the DRBIIIt, record and erase stored HVAC DTC's.
Cycle the ignition switch.
Start the engine.
Monitor the DRBIIItfor active HVAC DTCs while performing the following test
steps.
Manually press the A/C - Heater Control power switch on.
Turn the front blower motor control switch knob to the low position.
If equipped, turn the rear blower motor control switch knob to the low position.
Set the passenger blend control switch to the full cold position.
If equipped, set the zone/driver blend control switch to the full cold position.
Turn the mode select switch knob to the panel position.
Manually press the recirculation mode switch on, wait 30 seconds then press it off.
Manually press the A/C mode switch on, wait 30 seconds then press it off.
Manually press the rear window defogger switch on, wait 30 seconds then press it off.
Manually sweep the passenger blend control switch from full cold to full hot then
back to full cold.
If equipped, manually sweep the zone/driver blend control switch from full cold to full
hot then back to full cold.
Manually sweep the front blower motor control switch knob through all positions.
If equipped, manually sweep the rear blower motor control switch knob through all
positions.
If equipped, turn the rear blower motor control switch knob to the rear position.
If equipped, on the Rear Blower Rear Control, manually sweep the rear blower motor
control switch knob through all positions.
If equipped, on the Rear Blower Rear Control, manually sweep the rear blend/mode
control switch knob from full cold to full hot then back to full cold.
With the DRBIIIt, actuate the AC Cooldown Test.
With the DRBIIIt, actuate the HVAC Door Recalibration Test.
Place the vehicle on a hoist, and raise the wheels off the floor.
WARNING: Be sure to keep hands and feet clear of rotating wheels. Keep
clear of the engine's moving parts
Start the engine. Place the transmission in drive. Brake off.
Does the DRBIIItdisplay any active HVAC DTC(s), Cooldown Test or Door Recali-
bration message(s)?All
Ye s®Return to the symptom list and choose the symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No®No problem found at this time.
Perform BODY VERIFICATION TEST - VER 1.
518
HEATING & A/C
A/C FAULT (STORED) - MANUAL A/C ÐContinued

Page 548 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom List:
BACKLIGHT DIMMING RX FAILURE (ACTIVE) - MANUAL A/C
NO BCM MESSAGE RECEIVED (ACTIVE) - MANUAL A/C
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for th

Page 549 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
2 Turn the ignition on.
With the DRBIIItin Monitor Display, PCI Bus Messages, look for the VF DIM Msg
Present.
Does the DRB display: VF DIM Msg present: Yes?All
Ye s®Replace

Page 550 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom List:
BLEND CALIBRATION FAULT - MANUAL A/C
MODE CALIBRATION FAULT - MANUAL A/C
RECIRCULATION CALIBRATION FAULT - MANUAL A/C
ZONE CALIBRATION FAULT - MANUAL A/C
Test Note: All symptoms listed a

Symptom List:
BLEND CALIBRATION FAULT - MANUAL A/C
MODE CALIBRATION FAULT - MANUAL A/C
RECIRCULATION CALIBRATION FAULT - MANUAL A/C
ZONE CALIBRATION FAULT - MANUAL A/C
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be BLEND CALIBRATION FAULT -
MANUAL A/C.
When Monitored and Set Condition:
BLEND CALIBRATION FAULT - MANUAL A/C
When Monitored: When the HVAC Door Recalibration is executed. With the ignition on
(door actuator(s)/circuit(s) shorted low only).
Set Condition: If the Blend Door (Pass) drive span found is outside the tolerance. If the
Blend Door Actuator (Pass)/circuit is open. If the Blend Door(s) (Driver [Zone], Pass, Rear),
Mode Door(s) (Front, Rear), Recirculation Door Actuator(s)/circuit(s) are shorted low. (This
will also set Blend Calibration/Overcurrent (Front, Rear), Mode Calibration/Overcurrent
(Front, Rear), Recirculation Calibration/Overcurrent, Zone Calibration/Overcurrent
DTCs.)
MODE CALIBRATION FAULT - MANUAL A/C
When Monitored: When the HVAC Door Recalibration is executed. With the ignition on
(door actuator(s)/circuit(s) shorted low only).
Set Condition: If the Mode Door drive span found is outside the tolerance. If the Mode
Door Actuator/circuit is open. If the Blend Door(s) (Driver [Zone], Pass, Rear), Mode
Door(s) (Front, Rear), Recirculation Door Actuator(s)/circuit(s) are shorted low. (This will
also set Blend Calibration/Overcurrent (Front, Rear), Mode Calibration/Overcurrent
(Front, Rear), Recirculation Calibration/Overcurrent, Zone Calibration/Overcurrent
DTCs.)
RECIRCULATION CALIBRATION FAULT - MANUAL A/C
When Monitored: When the HVAC Door Recalibration is executed. With the ignition on
(door actuator(s)/circuit(s) shorted low only).
Set Condition: If the Recirculation Door drive span found is outside the tolerance. If the
Recirculation Door Actuator/circuit is open. If the Blend Door(s) (Driver [Zone], Pass,
Rear), Mode Door(s) (Front, Rear), Recirculation Door Actuator(s)/circuit(s) are shorted
low. (This will also set Blend Calibration/Overcurrent (Front, Rear), Mode Calibration/
Overcurrent (Front, Rear), Recirculation Calibration/Overcurrent, Zone Calibration/
Overcurrent DTCs.)
521
HEATING & A/C

Page 551 of 4284

CHRYSLER VOYAGER 2001 Service Manual ZONE CALIBRATION FAULT - MANUAL A/C
When Monitored: When the HVAC Door Recalibration is executed. With the ignition on
(door actuator(s)/circuit(s) shorted low only).
Set Condition: If the Blend Door

Page 552 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
2 Turn the ignition off.
Remove the applicable door actuator (Blend [Driver (Zone), Passenger], Recircula-
tion, Mode) from the A/C - Heater Housing Assembly.
Disconnect the

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