Diagnostic Test

DIAGNOSTIC TROUBLE CODE (DTC) PRESENT
1. Using the scan tool, record DTCs and any liftgate inhibitors.
2. Erase DTCs.
3. Turn the ignition off, wait 10 seconds, then turn the ignition on.
4. Operate the liftgate several times.
5. Using the scan tool, read DTCs.
  Does the scan tool display B1965-POWER LIFTGATE SENSOR SUPPLY 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 .
POWER LIFTGATE DRIVE UNIT

Fig 1: Checking Power Liftgate Drive Unit
Courtesy of CHRYSLER LLC
1. Disconnect the Power Liftgate Drive Unit harness connector.
2. Erase DTCs.
3. Turn the ignition off, wait 10 seconds, then turn the ignition on.
4. Using the scan tool, read DTCs.
  Does the scan tool display B1965-POWER LIFTGATE SENSOR SUPPLY CIRCUIT LOW?
  
  Yes
  - Go to step 3
  No
  - Replace the Power Liftgate Drive Unit in accordance with the service information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
(Q203) POSITION SENSOR SUPPLY CIRCUIT SHORT TO GROUND

Fig 2: Checking Position Sensor Supply Circuit Shorted To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Power Liftgate Module C1 harness connector.
3. Measure the resistance between ground and the (Q203) Position Sensor Supply circuit.
  Is the resistance below 10000.0 Ohms?
  
  Yes
  - Repair the (Q203) Position Sensor Supply circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Replace the Power Liftgate Module in accordance with service information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .