Diagnostic Test

1) DTC PRESENT
With the scan tool, record DTCs.

Erase DTCs.

Turn the ignition off, wait 10 seconds, then turn the ignition on.

Operate the liftgate several times from the overhead switch.

With the scan tool, read DTCs.

Does the scan tool display B18E3-POWER LIFTGATE FRONT ZONE SWITCH CIRCUIT LOW?

Yes
1. Go to 2).
No
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.
2. Perform BODY VERIFICATION TEST .
2) LIFTGATE RELEASE SWITCH SHORTED

Fig 1: Liftgate Release Switch PLG Connector And Sunroof/Liftgate Switch PLG Connector
Courtesy of CHRYSLER LLC

NOTE: Vehicles equipped with a sunroof have the Power Liftgate Switch integrated into the Sunroof Switch Assembly. The graphic shows switch connectors for vehicles with and without sunroof.

Disconnect the Overhead Liftgate Release Switch harness connector.

Erase DTCs.

Turn the ignition off, wait 10 seconds, then turn the ignition on.

With the scan tool, read DTC's.

Does the scan tool display B18E3-POWER LIFTGATE FRONT ZONE SWITCH CIRCUIT LOW?

Yes
1. Go to 3).
No
1. Replace the Overhead Liftgate Switch assembly in accordance with the service information.
2. Perform BODY VERIFICATION TEST .
3) (G25) LIFTGATE SWITCH SENSE CIRCUIT SHORT TO THE (Q901) LOGIC GROUND CIRCUIT

Fig 2: Measuring Resistance Between Logic Ground Circuit And Liftgate Switch Sense Circuit
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Power Liftgate Module C2 harness connector.

Measure the resistance between the (Q901) Logic Ground circuit and the (G25) Liftgate Switch Sense circuit.

Is the resistance below 1000.0 ohms?

No
1. Go to 3).
Yes
1. Repair the (G25) Liftgate Switch Sense circuit for a short to the (Q901) Logic Ground circuit.
2. Perform BODY VERIFICATION TEST .
4) (G25) LIFTGATE SWITCH SENSE CIRCUIT SHORT TO GROUND

Fig 3: Measuring Resistance Between Ground And Liftgate Switch Sense Circuit
Courtesy of CHRYSLER LLC

Measure the resistance between ground and the (G25) Liftgate Switch Sense circuit.

Is the resistance below 10000.0 ohms?

Yes
1. Repair the (G25) Liftgate Switch Sense circuit for a short to ground.
2. Perform BODY VERIFICATION TEST .
No
1. Replace the Power Liftgate Module in accordance with the service information.
2. Perform BODY VERIFICATION TEST .