Diagnostic Test

TEST FOR INTERMITTENT CONDITION
1. With the scan tool, record and erase DTC's
2. Operate the Liftgate or Decklid release several times.
3. Cycle the ignition from on to off.
4. Turn the ignition on.
5. With the scan tool, read DTC's.
  Does the scan tool display B1828-TRUNK/GATE RELEASE CONTROL CIRCUIT PERFORMANCE?
  
  Yes
  - Go to step 2
  No
  - The conditions that caused this code to set are not present at this time. Using the SYSTEM WIRING DIAGRAMS as a guide, inspect the wiring and connectors.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
(P31) DECKLID/LIFTGATE RELEASE DRIVER CIRCUIT SHORT TO GROUND

Fig 1: Checking Decklid/Liftgate Release Driver Circuit Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Instrument Cluster C1 connector.
3. Measure the resistance between ground and the (P31) Decklid/Liftgate Release Driver circuit in the Cluster C1 connector.
  Is the resistance below 1.5 ohms?
  
  Yes
  - Repair the (P31) Decklid/Liftgate Release Driver circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go to step 3
(P31) DECKLID/LIFTGATE RELEASE DRIVER CIRCUIT SHORTED TO BATTERY

Fig 2: Checking Decklid/Liftgate Release Driver Circuit Shorted To Battery
Courtesy of CHRYSLER LLC
1. Turn the ignition on.
2. Measure the voltage between ground and the (P31) Decklid/Liftgate Release Driver circuit in the Cluster C1 connector.
  Is there any voltage present?
  
  Yes
  - Repair the (P31) Decklid/Liftgate Release Driver circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go to step 4
(P31) DECKLID/LIFTGATE RELEASE DRIVER CIRCUIT OPEN

Fig 3: Checking Decklid/Liftgate Release Driver Circuit Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Decklid/Liftgate Latch connector.
3. Measure the resistance of the (P31) Decklid/Liftgate Release Driver circuit between the Cluster C1 connector and the Decklid/Liftgate Latch connector.
  Is the resistance above 5.0 ohms?
  
  No
  - Repair the (P31) Decklid/Liftgate Release Driver circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  Yes
  - Replace the Decklid or Liftgate Latch in accordance with service information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure