2007 Liberty KJ Factory Service Manual 8 - ELECTRICAL

*FLIP-UP GLASS RELEASE INOPERATIVE





For a complete wiring diagram Refer to Section 8W.



Possible Causes
  
G910 TAILGATE SWITCH GROUND OPEN
  
RELEASE MOTOR GROUND CIRCUIT OPEN
  
P100 FLIP-UP GLASS RELEASE MOTOR DRIVER WIRE OPEN
  
P101 FLIP-UP GLASS RELEASE SWITCH SENSE OPEN
  
FLIP-UP GLASS RELEASE MOTOR
  
FLIP-UP GLASS RELEASE SWITCH
  
BODY CONTROL MODULE - FLIP-UP GLASS RELEASE MOTOR DRIVER OPEN
  
BODY CONTROL MODULE - FLIP-UP GLASS RELEASE SWITCH SENSE OPEN
  



Diagnostic Test

WARNING:

1. TEST RELEASE SWITCH

With the scan tool in Inputs/Outputs, read the FLIP-UP GLASS REL SW state.
Observe the scan tool and move the tailgate handle from open to closed positions.

Does the scan tool display OPEN then CLOSED as the handle is moved?

Yes


No

2. CHECK FLIP-UP GLASS RELEASE MOTOR



Disconnect the Flip-Up Glass Release Motor connector.
Connect a 12-volt test light between the (P100) Flip-Up Glass Release Motor Driver circuit and the (Z213) Ground circuit in the motor connector.
With the scan tool actuate the RELEASE FLIP-UP GLASS.

Does the test light illuminate brightly when the motor is actuated?

Yes


No

3. CHECK FOR OPEN GROUND CIRCUIT



Using a 12-volt test light connected to 12-volts, check the (Z213) Ground circuit in the motor connector.

Does the test light illuminate brightly?

Yes


No

4. TEST FOR OPEN (P100) FLIP-UP GLASS RELEASE MOTOR DRIVER WIRE



Turn the ignition off.
Connect a jumper wire between the (P100) Flip-Up Glass Release Motor Driver circuit and (Z213) Ground in the motor connector.
Disconnect the Body Control Module C1 connector.
Measure the resistance between ground and the (P100) Flip-Up Glass Release Motor Driver circuit.

Is the resistance below 5.0 ohms?

Yes


No

5. CHECK FLIP-UP GLASS RELEASE SWITCH



Remove the tailgate trim panel.
Disconnect the Flip-Up Glass Release Switch. connector.
Connect a jumper wire between the (P101) Flip-Up Glass Release Switch circuit and the (G910) Tailgate Switch Ground circuit in the switch connector.
With the scan tool in Data Display, read the Flip-Up Glass Rel Sw state.

Does the scan tool display CLOSED?

Yes


No

6. CHECK (G910) TAILGATE SWITCH GROUND FOR AN OPEN



Using a 12-volt test light connected to 12-volts, check the (G910) Tailgate Switch Ground circuit.

Does the test light illuminate brightly?

Yes


No

7. CHECK (P101) FLIP-UP GLASS RELEASE SWITCH SENSE WIRE FOR AN OPENl



Turn the ignition off.
Connect a jumper wire between the (P101) Flip-Up Glass Release Switch Sense circuit and (G910) Ground circuit in the Flip-Up Glass Release Switch connector.
Disconnect the Body Control Module C1 connector.
Measure the resistance between ground and the (P101) Flip-Up Glass Release Switch Sense circuit.

Is the resistance below 5.0 ohms?

Yes


No