Jeep Liberty KJ. Manual — part 124
*RIGHT REAR DOOR AJAR CIRCUIT SHORT TO GROUND
For a complete wiring diagram Refer to Section 8W.
8L - 154
LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS
KJ
Theory of Operation
The scan tool will display the door state NOT the switch state. It will display as True/False. True states that the door
is ajar (open). False states that the door is NOT ajar (closed).
Possible Causes
(G76) RIGHT REAR DOOR AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND
DOOR LOCK MOTOR/AJAR SWITCH
BODY CONTROL MODULE
Diagnostic Test
1.
CHECK FOR SHORTED DOOR AJAR SWITCH
With the scan tool in Data Display, read the RIGHT REAR DOOR AJAR
SW state.
Disconnect the Door Lock Motor/Ajar Switch connector.
Does the scan tool display RIGHT REAR DOOR AJAR SW:
FALSE?
Yes
>> Replace the Door Lock Motor/Ajar Switch.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
No
>> Go To 2
2.
CHECK FOR (G76) RIGHT REAR DOOR AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND
Turn the ignition off.
Disconnect the Body Control Module C1 harness connector.
Using a 12–volt test light connected to 12–volts, check the (G76) Right
Rear Door Ajar Switch Sense circuit for a short to ground.
Does the test light illuminate brightly?
No
>> Replace the Body Control Module in accordance with ser-
vice information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
Yes
>> Repair the (G76) Right Rear Door Ajar Switch Sense circuit
for a short to ground.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
KJ
LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS
8L - 155
*TAILGATE AJAR CIRCUIT OPEN
For a complete wiring diagram Refer to Section 8W.
8L - 156
LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS
KJ
Theory of Operation
The scan tool will display the door state NOT the switch state. It will display as True/False. True states that the door
is ajar (open). False states that the door is NOT ajar (closed).
Possible Causes
TAILGATE AJAR SWITCH GROUND CIRCUIT OPEN
(G78) TAILGATE AJAR SWITCH SENSE CIRCUIT OPEN
TAILGATE LOCK MOTOR/AJAR SWITCH
BODY CONTROL MODULE
Diagnostic Test
1.
OPEN TAILGATE SWITCH GROUND CIRCUIT
Disconnect the Tailgate Lock Motor/Ajar switch connector.
Using a 12-volt Test Light connected to 12-volts, test the Tailgate Switch
Ground circuit.
Does the test light illuminate brightly?
Yes
>> Go To 2
No
>> Repair the Tailgate Switch Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
2.
CHECK FOR OPEN TAILGATE AJAR SWITCH
With the scan tool in Data Display, read the TAILGATE AJAR SW state.
Connect a jumper wire between the Sense circuit and the Ground cir-
cuit.
Does the scan tool display TAILGATE AJAR SW: TRUE?
Yes
>> Replace the Tailgate Lock Motor/Ajar Switch.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
No
>> Go To 3
KJ
LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS
8L - 157
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