Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSDODGE AND RAM2023DURANGO R/T PLUS, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSPOWER LIFTGATE MODULE (PLGM) - DTCS B1882-92 TO U0422-00DTC TROUBLESHOOTINGB1949-12-POWER LIFTGATE REAR ZONE SWITCH - CIRCUIT SHORT TO BATTERYDIAGNOSTIC TEST

2023 Dodge and Ram Durango R/T Plus, AWD

Diagnostic Test

2023 Dodge and Ram Durango R/T Plus, AWDSECTION Diagnostic Test

CHECK FOR ACTIVE DTCS
1. With the scan tool, record and erase the DTCs.
2. Cycle the ignition off, wait 10 seconds, then cycle the ignition on.
3. If possible, operate the liftgate several times.
4. With the scan tool, read the Active DTCs.
  Does the scan tool display; B1949-12-POWER LIFTGATE REAR ZONE SWITCH - CIRCUIT SHORT TO BATTERY?
  
  Yes
  - Go To 2
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and poor pin fit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE LIFTGATE REAR SWITCH FOR A SHORT
1. Disconnect the Power Liftgate Rear Switch connector.
2. Erase the DTCs.
3. Cycle the ignition off, wait 15 seconds, then cycle the ignition on.
4. With the scan tool, read the DTCs.
  Does the scan tool display; B1949-12-POWER LIFTGATE REAR ZONE SWITCH - CIRCUIT SHORT TO BATTERY?
  
  Yes
  - Replace the Power Liftgate Rear Switch in accordance with the Service Information. Refer to SWITCH, EXTERIOR HANDLE, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (G29) LIFTGATE SWITCH SIGNAL CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Disconnect the Power Liftgate Module C2 harness connector.
3. Measure the resistance of the (G29) Liftgate Switch Signal circuit between the Power Liftgate Module and the Power Liftgate Rear Switch.
  Is the resistance below 2.0 Ohms?
  
  Yes
  - Repair the circuit for an open or high resistance.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK THE (G29) LIFTGATE SWITCH SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the Power Liftgate Module C2 harness connector at the component of the circuit being tested. Note: Use the wiring diagram as a guide to follow the path of the circuit.
3. Turn the ignition on.
4. Using a DVOM, measure the voltage of the circuit being tested at the component harness connector.
  Is there voltage present?
  
  Yes
  - Repair the (G29) Liftgate Switch Signal circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 5
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all PLGM harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent terminals.
  - Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Check for spread terminals and verify proper terminal tension.
  Repair any conditions that are found.
5. Connect all PLGM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Connect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
10. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Rear Zone Switch in accordance with the Service Information. Refer to SWITCH, EXTERIOR HANDLE, REMOVAL .
  - Test complete. Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Test complete. Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.