Diagnostic Test

DTC PRESENT
1. With the scan tool, record DTCs.
2. Erase DTCs
3. Turn the ignition off, wait 10 seconds, then turn the ignition on.
4. Operate the liftgate several times.
5. With the scan tool, read DTCs.
  Does the scan tool display B18DE-POWER LIFTGATE HANDLE SWITCH CIRCUIT LOW
  
  Yes
  - Go to step 2
  No
  - Using the SYSTEM WIRING DIAGRAMS as a guide, inspect the wiring and connectors for an intermittent condition.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
LIFTGATE HANDLE SWITCH SHORTED

Fig 1: Checking Liftgate Handle Switch Shorted
Courtesy of CHRYSLER LLC
1. Disconnect the Power Liftgate Latch harness connector.
2. Erase DTCs.
3. Turn the ignition off, wait 10 seconds, then turn the ignition on.
4. With the scan tool, read DTCs.
  Does the scan tool display B18DE-POWER LIFTGATE HANDLE SWITCH CIRCUIT LOW?
  
  Yes
  - Go to step 3
  No
  - Replace the Power Liftgate Latch assembly in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
(P30) LIFTGATE HANDLE SWITCH SENSE CIRCUIT SHORT TO GROUND

Fig 2: Checking Liftgate Handle Switch Sense Circuit Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Power Liftgate Module C2 harness connector.
3. Measure the resistance between ground and the (P30) Liftgate Handle Switch Sense circuit.
  Is the resistance below 1, 000 ohms?
  
  Yes
  - Repair the (P30) Liftgate Handle Switch Sense circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Go to step 4
(P30) LIFTGATE HANDLE SWITCH SENSE CIRCUIT SHORT TO (Q901) LOGIC GROUND

Fig 3: Checking Liftgate Handle Switch Sense Circuit Short To Logic Ground
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (Q901) Logic Ground circuit and the (P30) Liftgate Handle Switch Sense circuit.
  Is the resistance below 1, 000 ohms?
  
  Yes
  - Replace the Power Liftgate Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Repair the (P30) Liftgate Handle Switch Sense circuit for a short to the (Q901) Logic Ground circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .