Jeep Grand Cherokee WK. Manual — part 1715
B10AA–RIGHT BLEND DOOR CONTROL CIRCUIT LOW (ATC) (CONTINUED)
6.
RUN THE ACTUATOR DTC DETECTION TEST
Reconnect the A/C Heater Control C2 harness connector.
Reconnect the Right Blend Door Actuator harness connector.
Turn the ignition on.
With the scan tool, erase HVAC DTCs.
Turn the ignition off, wait 10 seconds, and then turn the ignition on.
With the scan tool, select System Tests and then select Actuator DTC Detection. When the test is complete, select
View DTCs.
Does the scan tool only display: B10AA–RIGHT BLEND DOOR CONTROL CIRCUIT LOW?
Yes
>> Replace the A/C Heater Control in accordance with the Service Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
No, Other DTC(s) Displayed
Diagnose and repair the other DTC(s). If multiple DTCs are present, diagnose and repair all short high
DTCs before diagnosing short low DTCs. Refer to the Table of Contents 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. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
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HVAC - ELECTRICAL DIAGNOSTICS
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B10AB–RIGHT BLEND DOOR CONTROL CIRCUIT HIGH (ATC)
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HVAC - ELECTRICAL DIAGNOSTICS
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B10AB–RIGHT BLEND DOOR CONTROL CIRCUIT HIGH (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 (C61) Right Blend Door Driver circuit or the (C161) Right Blend Door Common Driver circuit is shorted
to voltage.
Possible Causes
(C61) RIGHT BLEND DOOR DRIVER CIRCUIT SHORTED TO VOLTAGE
(C161) RIGHT BLEND DOOR COMMON DRIVER CIRCUIT SHORTED TO VOLTAGE
A/C HEATER CONTROL
Diagnostic Test
1.
CHECK THE (C61) RIGHT BLEND DOOR DRIVER CIRCUIT & THE (C161) RIGHT BLEND DOOR COMMON
DRIVER CIRCUIT FOR A SHORT TO VOLTAGE
Turn the ignition off.
Disconnect the A/C Heater Control C2 harness connector.
Turn the ignition on.
Measure the voltage of the (C61) Right Blend Door Driver circuit.
Measure the voltage of the (C161) Right Blend Door Common Driver
circuit.
Is the voltage above 0.2 volts on either circuit?
Yes
>> Repair the circuit(s) with voltage above 0.2 volts a short to
voltage.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
No
>> Go To 2
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HVAC - ELECTRICAL DIAGNOSTICS
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B10AB–RIGHT BLEND DOOR CONTROL CIRCUIT HIGH (ATC) (CONTINUED)
2.
RUN THE ACTUATOR DTC DETECTION TEST
Turn the ignition off.
Reconnect the A/C Heater Control C2 harness connector.
Turn the ignition on.
With the scan tool, erase HVAC DTCs.
Turn the ignition off, wait 10 seconds, and then turn the ignition on.
With the scan tool, select System Tests and then select Actuator DTC Detection. When the test is complete, select
View DTCs.
Does the scan tool only display: B10AB–RIGHT BLEND DOOR CONTROL CIRCUIT HIGH?
Yes
>> Replace the A/C Heater Control in accordance with the Service Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
No, Other DTC(s) Displayed
Diagnose and repair the other DTC(s). If multiple DTCs are present, diagnose and repair all short high
DTCs before diagnosing short low DTCs. Refer to the Table of Contents 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. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
WK
HVAC - ELECTRICAL DIAGNOSTICS
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