Dodge Durango (HB). Manual — part 1479
B105F–CLIMATE CONTROL MOTOR(S) COMMON 1 CONTROL CIRCUIT LOW (ATC) (CONTINUED)
2.
CHECK (C34) COMMON DOOR DRIVER 1 CIRCUIT FOR A SHORT TO OTHER DOOR DRIVER CIRCUITS
Measure the resistance between the (C34) Common Door Driver 1 cir-
cuit and the (C54) Rear Blend Door Driver circuit, the (C808) Common
Door Driver 3 circuit, the (C154) Rear Common Door Driver circuit, the
(C53) Rear Mode Door Driver circuit, the (C801) Mode Door 2 Driver
circuit, the (C807) Common Door Driver 2 circuit, and the (C29) Mode
Door 1 Driver circuit in the A/C Heater Control C1 harness connector.
Is the resistance below 10k ohms between the (C34) Common
Door Driver 1 circuit and any of the other door driver circuits?
Yes
>> Repair the circuits with a resistance below 10k ohms for a
short to the (C34) Common Door Driver 1 circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 3
3.
CHECK FRONT BLEND DOOR ACTUATOR CIRCUIT RESISTANCE
Measure the resistance between the (C61) Front Blend Door Driver
circuit and the (C34) Common Door Driver 1 circuit in the A/C Heater
Control C1 harness connector.
Is the resistance below 30 ohms?
Yes
>> Go To 4
No
>> Go To 5
HB
HVAC - ELECTRICAL DIAGNOSTICS
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B105F–CLIMATE CONTROL MOTOR(S) COMMON 1 CONTROL CIRCUIT LOW (ATC) (CONTINUED)
4.
CHECK (C61) FRONT BLEND DOOR DRIVER CIRCUIT FOR A SHORT TO (C34) COMMON DOOR DRIVER
1 CIRCUIT
Disconnect the Front Blend Door Actuator harness connector.
Measure the resistance between the (C61) Front Blend Door Driver
circuit and the (C34) Common Door Driver 1 circuit in the A/C Heater
Control C1 harness connector.
Is the resistance below 10k ohms?
Yes
>> Repair the (C61) Front Blend Door Driver Circuit for a
short to the (C34) Common Door Driver 1 circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Replace the Front Blend Door Actuator in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
5.
CHECK RECIRCULATION DOOR ACTUATOR CIRCUIT RESISTANCE
Measure the resistance between the (C32) Recirculation Door Driver
circuit and the (C34) Common Door Driver 1 circuit in the A/C Heater
Control C1 harness connector.
Is the resistance below 30 ohms?
Yes
>> Go To 6
No
>> Go To 7
6.
CHECK (C32) RECIRCULATION DOOR DRIVER CIRCUIT FOR A SHORT TO (C34) COMMON DOOR
DRIVER 1 CIRCUIT
Disconnect the Recirculation Door Actuator harness connector.
Measure the resistance between the (C32) Recirculation Door Driver
circuit and the (C34) Common Door Driver 1 circuit in the A/C Heater
Control C1 harness connector.
Is the resistance below 10k ohms?
Yes
>> Repair the (C32) Recirculation Door Driver circuit for a
short to the (C34) Common Door Driver 1 circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Replace the Recirculation Door Actuator in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
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HVAC - ELECTRICAL DIAGNOSTICS
HB
B105F–CLIMATE CONTROL MOTOR(S) COMMON 1 CONTROL CIRCUIT LOW (ATC) (CONTINUED)
7.
RUN THE ACTUATOR DTC DETECTION TEST
Reconnect the A/C Heater Control C1 harness connector.
Turn the ignition on.
With the scan tool in HVAC, select System Tests and then select Actuator DTC Detection. When the test is com-
plete, select View DTCs.
Does the scan tool only display: B105F–CLIMATE CONTROL MOTOR(S) COMMON 1 CONTROL CIRCUIT
LOW?
Yes
>> Replace the A/C Heater Control in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No, Other DTC(s) Displayed
Diagnose and repair the other DTC(s). If multiple DTCs are present, beginning with the common cir-
cuits, diagnose and repair all short high DTCs and then all short low DTCs. Refer to the Table of Con-
tents in this Section for a complete list of all HVAC related symptoms.
No, And No Other DTCs Displayed
Using the wiring diagram as a guide, inspect the wiring and connectors for conditions causing an inter-
mittent short. Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
HB
HVAC - ELECTRICAL DIAGNOSTICS
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B105F–CLIMATE CONTROL MOTOR(S) COMMON 1 CONTROL CIRCUIT LOW (MTC)
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HVAC - ELECTRICAL DIAGNOSTICS
HB
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