Jeep Liberty KJ. Manual — part 117
*FLIP-UP GLASS AJAR CIRCUIT OPEN
For a complete wiring diagram Refer to Section 8W.
8L - 126
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
FLIP-UP GLASS AJAR SWITCH GROUND CIRCUIT OPEN
(G80) FLIP-UP GLASS AJAR SWITCH SENSE CIRCUIT OPEN
FLIP-UP GLASS AJAR SWITCH
BODY CONTROL MODULE
Diagnostic Test
1.
FLIP-UP GLASS AJAR FUNCTIONAL TEST
Open the Flip-up Glass.
With the scan tool in Data Display, read the FLIP-UP AJAR SW state.
Does the scan tool display TRUE?
Yes
>> The condition that caused this symptom is currently not present. Inspect the related wiring harness for
a possible intermittent condition. Look for any chafed, pierced, pinched or partially broken wires.
No
>> Go To 2
2.
OPEN FLIP-UP GLASS AJAR SWITCH GROUND CIRCUIT
Disconnect the Tailgate Flip-up Glass Ajar switch connector.
Using a 12-volt Test Light connected to 12-volts, test the Ground circuit.
Does the test light illuminate brightly?
Yes
>> Go To 3
No
>> Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
KJ
LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS
8L - 127
3.
CHECK FOR OPEN FLIP-UP GLASS AJAR SWITCH
With the scan tool in Data Display, read the FLIP-UP AJAR SW state.
Connect a jumper wire between Sense circuit and the Ground circuit in
the Tailgate Flip-Up Glass Ajar Switch connector.
Does the scan tool display FLIP-UP AJAR SW: TRUE?
Yes
>> Replace the Flip-up Glass Ajar Switch.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
No
>> Go To 4
4.
CHECK FOR OPEN (G80) FLIP-UP GLASS AJAR SWITCH SENSE CIRCUIT
Turn the ignition off.
Leave the jumper wire from the previous step connected.
Disconnect the Body Control Module C1 harness connector.
Measure the resistance between ground and the (G80) Flip-Up Glass
Ajar Switch Sense circuit.
Is the resistance below 5.0 ohms?
Yes
>> Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
No
>> Repair the (G80) Flip-up Glass Ajar Switch Sense circuit for
an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
8L - 128
LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS
KJ
*FLIP-UP GLASS AJAR CIRCUIT SHORT TO GROUND
For a complete wiring diagram Refer to Section 8W.
KJ
LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS
8L - 129
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