Chrysler RG Voyager. Manual - part 180

TEST

ACTION

APPLICABILITY

Start the engine.
Turn the rear blower control on the A/C-Heater Control Module to the rear control
position.
Turn the rear blower control on the Rear A/C-Heater Control to the high speed
position.
Turn the rear blend control to the full cold position.
Turn the rear blend control to the full hot position, in 25% increments, while checking
for a change in airflow air temperature coming from the vents.
Does the airflow air temperature change with respect to the position of the blend
control?

All

Yes

→ Test Complete.

→ Remove door actuator from Rear A/C-Heater Housing Assy. By

hand, attempt to rotate door actuator in both directions. Also,
inspect for disconnected, missing, or broken door actuator link-
age. Repair as necessary in accordance with the Service Informa-
tion.
Perform BODY VERIFICATION TEST - VER 1.

689

HEATING & A/C

*BLEND/MODE/RECIRC DOOR OPERATION IMPROPER -- DUAL &
THREE-ZONE MTC —

Continued

Symptom:

*BLEND/MODE/RECIRC

DOOR

OPERATION

IMPROPER

SINGLE-ZONE MTC

POSSIBLE CAUSES

CHECK FOR ACTUATOR CIRCUIT TEST FAULT MESSAGES

CHECK FOR ACTIVE HVAC DTCS

CHECK FOR HVAC DO0R RECALIBRATION FAULT MESSAGES

MODE DOOR ACTUATOR/LINKAGE/DOOR

BLEND DOOR ACTUATOR/LINKAGE/DOOR

RECIRCULATION DOOR ACTUATOR/LINKAGE/DOOR

TEST

ACTION

APPLICABILITY

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

t in HVAC, System Tests, actuate the Actuator Circuit Test.

Does the DRBIII

t display any Actuator Circuit Test fault messages?

All

Yes

→ Return to the symptom list and choose the symptom(s).

Perform BODY VERIFICATION TEST - VER 1.

→ Go To 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

t, read active HVAC DTCs.

Does the DRBIII

t display any active HVAC DTCs?

All

Yes

→ Return to the symptom list and choose the symptom(s).

Perform BODY VERIFICATION TEST - VER 1.

→ Go To 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

t in HVAC, System Tests, actuate the HVAC Door Recalibration

Test.
Does the DRBIII

t display any HVAC Door Recalibration fault messages?

All

Yes

→ Return to the symptom list and choose the symptom(s).

Perform BODY VERIFICATION TEST - VER 1.

→ Go To 4

690

HEATING & A/C

TEST

ACTION

APPLICABILITY

Which door did customer ID as faulty?

All

Mode Door

Go To

Blend Door

Go To

Recirculation Door

Go To

Start the engine.
Turn the blower control to the high speed position.
Turn the mode control to each door position for a minimum of 30 seconds and check
for airflow from the corresponding vents.
Does air flow from the correct vents for each door position?

All

Yes

→ Test Complete.

→ Remove door actuator from A/C Heater Housing Assy. By hand,

attempt to rotate door actuator in both directions. Also, inspect for
disconnected, missing, or broken door actuator linkage. Repair as
necessary in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.

Start the engine.
Turn the blower control to the high speed position.
Turn the mode control to the panel position.
Turn the blend control to the full hot position.
Turn the blend control to the full cold position, in 25% increments, while checking for
a change in airflow air temperature coming from the panel vents.
Does the airflow air temperature change with respect to the position of the blend
control?

All

Yes

→ Test Complete.

→ Remove door actuator from A/C-Heater Housing Assy. By hand,

attempt to rotate the door actuator in both directions. Also,
inspect for disconnected, missing, or broken door actuator link-
age. Repair as necessary in accordance with the Service Informa-
tion.
Perform BODY VERIFICATION TEST - VER 1.

Start the engine.
Turn the blower control to the high speed position.
Turn the mode control to the panel position.
Make sure that recirc is switched off (status indicator not illuminated).
Press the recirc switch on (status indicator illuminated). The sound of the air flowing
through the ducts should get louder as the recirculation door opens to bring in recirc
air.
Does the sound of the airflow get louder after pressing the recirc switch on?

All

Yes

→ Test Complete.

→ Remove door actuator from A/C-Heater Housing Assy. By hand,

691

HEATING & A/C

*BLEND/MODE/RECIRC DOOR OPERATION IMPROPER -- SINGLE-
ZONE MTC —

Continued

Symptom:

*FRONT A/C - HEATER CONTROL ILLUMINATION INOPERATIVE -
MTC

POSSIBLE CAUSES

CHECK FOR HVAC DTCS

CHECK FOR BCM DTCS

A/C - HEATER CONTROL MODULE

PANEL LAMPS DRIVER CIRCUIT OPEN

BODY CONTROL MODULE - PANEL LAMPS DRIVER OPEN

TEST

ACTION

APPLICABILITY

Turn the ignition on.
With the DRBIII

t, read HVAC DTCs.

Does the DRBIII

t display any HVAC DTCs?

All

Yes

→ Return to the symptom list and choose the symptom(s).

Perform BODY VERIFICATION TEST - VER 1.

→ Go To 2

Turn the ignition on.
With the DRBIII

t, read the BCM DTCs.

Does DRBIII

t display Headlamp Switch: Mismatch; STG; Open; or Panel Dim

Output Short?

All

Yes

→ Refer to symptoms Headlamp Switch Mismatch, Headlamp

Switch Shorted To Ground, and Headlamp Switch Open in the
Exterior Lighting catagory. Refer to symptom Panel Dimming
Output Short in the Instrument Cluster catagory.
Perform BODY VERIFICATION TEST - VER 1.

→ Go To 3

Turn the ignition off.
Rotate the Panel Lamps Dimmer switch to the off position.
Disconnect the A/C - Heater Control C1 harness connector.
Turn the Headlamp switch on.
Measure the voltage of the Panel Lamps Driver circuit while rotating the Panel
Lamps Dimmer switch from the off position to the full brightness position.
Does the voltage change from approximately 2.5 volts to 11.5 volts?

All

Yes

→ Replace the A/C - Heater Control Module in accordance with the

Service Information.
Perform BODY VERIFICATION TEST - VER 1.

→ Go To 4

692

HEATING & A/C

Content .. 178 179 180 181 ..