Dodge Viper SRT-10 (ZB). Manual — part 333
TEST
ACTION
APPLICABILITY
4
Turn the ignition on.
With the DRBIII
t, erase HVAC DTCs.
Cycle the ignition switch and wait approximately 1 minute.
With the DRBIII
t, read HVAC DTC’s.
Did this DTC reset?
All
Yes
→ Replace the A/C - Heater Control Module in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors to help isolate a possible intermittent
wiring condition.
Perform BODY VERIFICATION TEST - VER 1.
225
HEATING & A/C
TX FAILURE (ACTIVE) —
Continued
Symptom:
*A/C - HEATER CONTROL ILLUMINATION INOPERATIVE
POSSIBLE CAUSES
CHECK FOR BODY CONTROL MODULE DTCS
INOPERATIVE BULB(S)
A/C - HEATER CONTROL MODULE
PANEL LAMPS DRIVER CIRCUIT OPEN
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t in Body Computer, read DTCs.
Does the DRBIII
t display any DTCs?
All
Yes
→ Refer to the appropriate category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the Headlamp switch on.
Rotate the Panel Dimmer switch to the full brightness setting.
CAUTION: The test light must illuminate brightly. Compare the brightness
to that of a direct connection to the battery.
Using a 12-volt test light connected to ground, back probe the Panel Lamps Driver
circuit in the A/C-Heater Control Module C2 harness connector.
Does the test light illuminate brightly?
All
Yes
→ Go To 3
No
→ Go To 4
3
Turn the ignition off.
Remove the inoperative bulb(s) from the A/C - Heater Control Module.
NOTE: If necessary, hold the bulb in front of a lamp to see the filament.
Inspect the bulb(s).
Is each inoperative bulb Ok?
All
Yes
→ Replace the A/C - Heater Control Module in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the inoperative bulb(s).
Perform BODY VERIFICATION TEST - VER 1.
226
HEATING & A/C
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the A/C - Heater Control C2 harness connector.
Disconnect the Body Control Module C2 harness connector.
Measure the resistance of the Panel Lamps Driver circuit between the A/C - Heater
Control C2 harness connector and the Body Control Module C2 harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Body Control Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Panel Lamps Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
227
HEATING & A/C
*A/C - HEATER CONTROL ILLUMINATION INOPERATIVE —
Continued
Symptom:
*BLEND/MODE/RECIRC DOOR OPERATION IMPROPER
POSSIBLE CAUSES
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)
BLEND DOOR ACTUATOR/LINKAGE/DOOR
RECIRCULATION DOOR ACTUATOR/LINKAGE/DOOR
TEST
ACTION
APPLICABILITY
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
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.
No
→ Go To 2
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.
No
→ Go To 3
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.
No
→ Go To 4
4
Which door did customer ID as faulty?
All
Mode Doors
Blend Door
Recirculation Door
228
HEATING & A/C
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