Diagnostic Test

WARNING: This page is about a different car, the 2012 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.

DTC PRESENT
1. With the scan tool, record and erase DTCs.
2. Turn the ignition off, wait 10 seconds, then turn the ignition on.
3. Operate the power liftgate several times if possible.
4. With the scan tool, read DTCs.
5. If the B2199-16-BATTERY VOLTAGE LOW DTC is present, repair that code before proceeding.
  Does the scan tool display; B197F-11-POWER LIFTGATE LATCH CONTROL 1 - CIRCUIT SHORT TO GROUND?
  
  Yes
  - Go To 2.
  No
  - Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition. Operate the liftgate several times and check for any binding conditions in the latch assembly.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
BINDING LIFTGATE LATCH
1. Examine the liftgate for proper alignment, worn or binding hinges, latch alignment or anything that would cause an obstruction to proper operation.
2. With an open liftgate, manually close the latch and open it with the handle switch several times.
  Were there any mechanical problems found?
  
  Yes
  - Refer to the Service information for the related symptom(s). Refer to STANDARD PROCEDURE .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3.
CHECK THE (Q84) LIFTGATE LATCH CINCH DRIVER CIRCUIT FOR A SHORT TO THE (Q901) LOGIC GROUND

Fig 1: Checking Liftgate Latch Cinch Driver Circuit For A Short To Logic Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Power Liftgate Latch connector.
3. Measure the resistance between the (Q901) Logic Ground circuit and the (Q84) Liftgate Latch Cinch Driver circuit in the latch connector.
4. Wiggle the harness and check for an intermittent short circuit condition.
  Is the resistance below 100.0 Ohms?
  
  Yes
  - Go To 6.
  No
  - Go To 4.
CHECK THE (Q85) LIFTGATE LATCH RELEASE DRIVER CIRCUIT FOR A SHORT TO THE (Q901) LOGIC GROUND

Fig 2: Checking Liftgate Latch Release Driver Circuit For A Short To Logic Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between the (Q901) Logic Ground circuit and the (Q85) Liftgate Latch Release Driver circuit in the latch connector.
2. Wiggle the harness and check for an intermittent short circuit condition.
  Is the resistance below 100.0 Ohms?
  
  Yes
  - Go To 6.
  No
  - Go To 5.
CHECK THE (Q84) LIFTGATE LATCH CINCH DRIVER CIRCUIT FOR A SHORT TO THE (Q85) LIFTGATE LATCH RELEASE DRIVER CIRCUIT

Fig 3: Measuring Resistance Between Liftgate Latch Cinch Driver Circuit & Liftgate Latch Release Driver
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the Power Liftgate Module C2 harness connector.
2. Measure the resistance between the (Q84) Liftgate Latch Cinch Driver circuit and the (Q85) Liftgate Latch Release Driver circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (Q84) Liftgate Latch Cinch Driver circuit for a short to the (Q85) Liftgate Latch Release Driver Circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Power Liftgate Latch assembly in accordance with the Service Information and using the scan tool, run the "Latch Home Sector Test". Refer to LATCH, LIFTGATE, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (Q85) LIFTGATE LATCH RELEASE DRIVER CIRCUIT FOR A SHORT TO GROUND

Fig 4: Checking Liftgate Latch Release Driver Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the Power Liftgate Module C2 harness connector.
2. Measure the resistance between ground and the (Q85) Liftgate Latch Release Driver circuit.
3. Wiggle the harness and check for an intermittent short circuit condition.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (Q85) Liftgate Latch Release Driver circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 7.
CHECK THE (Q84) LIFTGATE LATCH CINCH DRIVER CIRCUIT FOR A SHORT TO GROUND

Fig 5: Checking Liftgate Latch Cinch Driver Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (Q84) Liftgate Latch Cinch Driver circuit.
2. Wiggle the harness and check for an intermittent short circuit condition.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (Q84) Liftgate Latch Cinch Driver circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Power Liftgate Module in accordance with service information. Refer to MODULE, POWER LIFTGATE CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .