Dodge Durango (HB). Manual — part 1519
B1063–CLIMATE CONTROL MOTOR(S) COMMON 2 CONTROL CIRCUIT LOW (ATC) (CONTINUED)
For the Automatic Temperature Control (ATC) circuit diagram (Refer to 24 - HEATING & AIR CONDITIONING -
SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
When the Actuator DTC Detection Test is executed.
•
Set Condition:
If the (C807) Common Door Driver 2 circuit is shorted to ground.
Possible Causes
(C807) COMMON DOOR DRIVER 2 CIRCUIT SHORTED TO GROUND
(C807) COMMON DOOR DRIVER 2 CIRCUIT SHORTED TO OTHER DOOR DRIVER CIRCUIT(S)
MODE DOOR 1 (FLOOR TO PANEL) ACTUATOR
A/C HEATER CONTROL
Theory of Operation
The A/C Heater Control drives the Mode Door 1 (Floor to Panel) Actuator via the (C29) Mode Door 1 Driver circuit
and the (C807) Common Door Driver 2 circuit. The Mode Door 1 (Floor to Panel) Actuator does not share the
(C807) Common Door Driver 2 circuit or its driver inside the A/C Heater Control with any other actuator.
Diagnostic Test
1.
CHECK (C807) COMMON DOOR DRIVER 2 CIRCUIT FOR A SHORT TO GROUND
Turn the ignition off.
Disconnect the A/C Heater Control C1 harness connector.
Measure the resistance of the (C807) Common Door Driver 2 circuit
between ground and the A/C Heater Control C1 harness connector.
Is the resistance below 10k ohms?
Yes
>> Repair the (C807) Common Door Driver 2 circuit for a
short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 2
HB
HVAC - ELECTRICAL DIAGNOSTICS
24 - 269
B1063–CLIMATE CONTROL MOTOR(S) COMMON 2 CONTROL CIRCUIT LOW (ATC) (CONTINUED)
2.
CHECK (C807) COMMON DOOR DRIVER 2 CIRCUIT FOR A SHORT TO OTHER DOOR DRIVER CIRCUITS
Measure the resistance between the (C807) Common Door Driver 2
circuit and the (C54) Rear Blend Door Driver circuit, the (C808) Com-
mon Door Driver 3 circuit, the (C32) Recirculation Door Driver circuit,
the (C34) Common Door Driver 1 circuit, the (C154) Rear Common
Door Driver circuit, the (C53) Rear Mode Door Driver circuit, the
(C801) Mode Door 2 Driver circuit, and the (C61) Front Blend Door
Driver circuit in the A/C Heater Control C1 harness connector.
Is the resistance below 10k ohms between the (C807) Common
Door Driver 2 circuit and any of the other door driver circuits?
Yes
>> Repair the circuits with a resistance below 10k ohms for a
short to the (C807) Common Door Driver 2 circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 3
3.
CHECK MODE DOOR 1 (FLOOR TO PANEL) ACTUATOR CIRCUIT RESISTANCE
Measure the resistance between the (C29) Mode Door 1 Driver circuit
and the (C807) Common Door Driver 2 circuit in the A/C Heater Con-
trol C1 harness connector.
Is the resistance below 30 ohms?
Yes
>> Go To 4
No
>> Go To 5
24 - 270
HVAC - ELECTRICAL DIAGNOSTICS
HB
B1063–CLIMATE CONTROL MOTOR(S) COMMON 2 CONTROL CIRCUIT LOW (ATC) (CONTINUED)
4.
CHECK (C29) MODE DOOR 1 DRIVER CIRCUIT FOR A SHORT TO (C807) COMMON DOOR DRIVER 2
CIRCUIT
Disconnect the Mode Door 1 (Floor to Panel) Actuator harness con-
nector.
Measure the resistance between the (C29) Mode Door 1 Driver circuit
and the (C807) Common Door Driver 2 circuit in the A/C Heater Con-
trol C1 harness connector.
Is the resistance below 10k ohms?
Yes
>> Repair the (C29) Mode Door 1 Driver Circuit for a short to
the (C807) Common Door Driver 2 circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Replace the Mode Door 1 (Floor to Panel) Actuator in
accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
5.
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: B1063–CLIMATE CONTROL MOTOR(S) COMMON 2 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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B1064–CLIMATE CONTROL MOTOR(S) COMMON 2 CONTROL CIRCUIT HIGH (ATC)
24 - 272
HVAC - ELECTRICAL DIAGNOSTICS
HB
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