Jeep Grand Cherokee WK. Manual — part 1707
72–SHORT TOO COMPLEX (MTC) (CONTINUED)
9.
CHECK THE FRONT MODE DOOR ACTUATOR CIRCUIT RESISTANCE
Measure the resistance between the (C66) Front Mode Door Common
Driver Circuit and the (C266) Front Mode Door Driver circuit in the A/C
Heater Control C2 harness connector.
Is the resistance below 30.0 ohms?
Yes
>> Go To 10
No
>> Go To 11
10.
CHECK THE (C66) FRONT MODE DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO THE (C266)
FRONT MODE DOOR DRIVER CIRCUIT
Disconnect the Front Mode Door Actuator harness connector.
Measure the resistance between the (C66) Front Mode Door Common
Driver Circuit and the (C266) Front Mode Door Driver circuit in the A/C
Heater Control C2 harness connector.
Is the resistance below 10k ohms?
Yes
>> Repair the (C66) Front Mode Door Common Driver Circuit
for a short to the (C266) Front Mode Door Driver circuit.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
No
>> Replace the Front Mode Door Actuator in accordance with
the Service Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
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HVAC - ELECTRICAL DIAGNOSTICS
WK
72–SHORT TOO COMPLEX (MTC) (CONTINUED)
11.
CHECK THE REAR MODE DOOR ACTUATOR CIRCUIT RESISTANCE
Measure the resistance between the (C939) Rear Mode Door Com-
mon Driver Circuit and the (C139) Rear Mode Door Driver circuit in the
A/C Heater Control C2 harness connector.
Is the resistance below 30.0 ohms?
Yes
>> Go To 12
No
>> Go To 13
12.
CHECK THE (C939) REAR MODE DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO THE (C139)
REAR MODE DOOR DRIVER CIRCUIT
Disconnect the Rear Mode Door Actuator harness connector.
Measure the resistance between the (C939) Rear Mode Door Com-
mon Driver Circuit and the (C139) Rear Mode Door Driver circuit in the
A/C Heater Control C2 harness connector.
Is the resistance below 10k ohms?
Yes
>> Repair the (C939) Rear Mode Door Common Driver Circuit
for a short to the (C139) Rear Mode Door Driver circuit.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
No
>> Replace the Rear Mode Door Actuator in accordance with
the Service Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
WK
HVAC - ELECTRICAL DIAGNOSTICS
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72–SHORT TOO COMPLEX (MTC) (CONTINUED)
13.
CHECK THE LEFT BLEND DOOR ACTUATOR CIRCUIT RESISTANCE
Measure the resistance between the (C55) Left Blend Door Common
Driver Circuit and the (C255) Left Blend Door Driver circuit in the A/C
Heater Control C2 harness connector.
Is the resistance below 30.0 ohms?
Yes
>> Go To 14
No
>> Go To 15
14.
CHECK THE (C55) LEFT BLEND DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO THE (C255)
LEFT BLEND DOOR DRIVER CIRCUIT
Disconnect the Left Blend Door Actuator harness connector.
Measure the resistance between the (C55) Left Blend Door Common
Driver Circuit and the (C255) Left Blend Door Driver circuit in the A/C
Heater Control C2 harness connector.
Is the resistance below 10k ohms?
Yes
>> Repair the (C55) Left Blend Door Common Driver Circuit
for a short to the (C255) Left Blend Door Driver circuit.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
No
>> Replace the Left Blend Door Actuator in accordance with
the Service Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
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HVAC - ELECTRICAL DIAGNOSTICS
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72–SHORT TOO COMPLEX (MTC) (CONTINUED)
15.
CHECK THE RECIRCULATION DOOR ACTUATOR CIRCUIT RESISTANCE
Measure the resistance between the (C68) Recirculation Door Com-
mon Driver Circuit and the (C268) Recirculation Door Driver circuit in
the A/C Heater Control C2 harness connector.
Is the resistance below 30.0 ohms?
Yes
>> Go To 16
No
>> Go To 17
16.
CHECK THE (C68) RECIRCULATION DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO THE (C268)
RECIRCULATION DOOR DRIVER CIRCUIT
Disconnect the Recirculation Door Actuator harness connector.
Measure the resistance between the (C68) Recirculation Door Com-
mon Driver Circuit and the (C268) Recirculation Door Driver circuit in
the A/C Heater Control C2 harness connector.
Is the resistance below 10k ohms?
Yes
>> Repair the (C68) Recirculation Door Common Driver Cir-
cuit for a short to the (C268) Recirculation Door Driver cir-
cuit.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
No
>> Replace the Recirculation Door Actuator in accordance
with the Service Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
WK
HVAC - ELECTRICAL DIAGNOSTICS
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