Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR SMART DOOR HANDLE CONFIGURATION
NOTE:
If there are any other RF Hub DTCs, perform the diagnostic procedure for them before proceeding.
1. With the scan tool select the RF Hub and verify the configuration for a smart door handle is present on the front left door.
  Is a smart door handle present?
  
  Yes
  - Go To 2
  No
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK FOR A SMART DOOR HANDLE
1. Verify that the smart sensor (magnet) is present by pulling the front left door handle and holding it in the open position, while visually looking for a smart sensor (magnet) in the side of the door handle cap closest to the handle.
  Is the smart sensor (magnet) in the door handle cap?
  
  Yes
  - Go To 3
  No
  - Replace the Front Left Exterior Door Handle Cap in accordance with the Service Information. Refer to HANDLE, EXTERIOR, REMOVAL .
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK FOR AN ACTIVE DTC
NOTE:
Make sure the battery is fully charged.
1. Turn the ignition on and leave on until instructed to "Turn the ignition off".
2. With the scan tool, read RF Hub DTCs and record on the repair order.
3. With the scan tool, select: "RFH" and "System" Tests.
4. Perform the Door Handle Verification Test. This will activate the Module to retest for DTCs.
5. With the scan tool, read RF Hub DTCs and wait one (1) minute.
  Is the DTC active?
  
  Yes
  - Go To 4
  No
  - 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 correct pin tension and repair as necessary. If no problems are found, test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (P125) FRONT LEFT PASSIVE ENTRY HANDLE SWITCH SENSE CIRCUIT
1. With the scan tool, select "RFH", "Data" and scroll to "FRONT LEFT Door Handle Power".
2. Observe the Value field.
  What does the Value field display?
  
  OFF
  - Go To 5
  ON
  - Go To 10
CHECK THE (P125) FRONT LEFT PASSIVE ENTRY HANDLE SWITCH SENSE CIRCUIT FOR AN OPEN OR SHORT
1. With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
2. With the scan tool, select "RFH", "Data" and scroll to "FRONT LEFT Door Handle Power".
3. Double click on the Value field to start the graph.
4. Observe the graph for a pulsating line.
  Is the graph pulsating between high and low on the screen?
  
  Yes
  - Go To 6
  No
  - Go To 9
CHECK THE FRONT LEFT EXTERIOR DOOR HANDLE (PASSIVE ENTRY)
1. Remove the FRONT LEFT Exterior Door Handle and disconnect the switch harness connector.
2. With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
3. With the scan tool, select "RFH", "Data" and scroll to "FRONT LEFT Door Handle Power".
4. Double click on the Value field to start the graph.
5. Observe the graph for a pulsating line.
  Is the graph pulsating between high and low on the screen?
  
  Yes
  - Go To 7
  No
  - Replace the FRONT LEFT External Door Handle. Refer to HANDLE, EXTERIOR, NSTALLATION .
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (P125) FRONT LEFT PASSIVE HANDLE SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the Radio Frequency Hub (RF Hub) Module C2 harness connector.
3. Check for continuity between ground and the (P125) FRONT LEFT Passive Handle Switch Sense circuit at the Radio Frequency Hub (RF Hub) Module C2 harness connector.
  Is there continuity between ground and the (P125) FRONT LEFT Passive Handle Switch Sense circuit?
  
  Yes
  - Repair the (P125) FRONT LEFT Passive Handle Switch Sense circuit for a short to ground.
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 8
CHECK THE (P125) FRONT LEFT PASSIVE HANDLE SWITCH SENSE CIRCUIT FOR A SHORT TO THE (P124) FRONT LEFT PASSIVE HANDLE SWITCH RETURN CIRCUIT
1. Check for continuity between the (P125) FRONT LEFT Passive Handle Switch Sense circuit and the (P124) FRONT LEFT Passive Handle Switch Return circuit at the Radio Frequency Hub (RF Hub) Module C2 harness connector.
  Is there continuity between the (P125) FRONT LEFT Passive Handle Switch Sense circuit and the (P124) FRONT LEFT Passive Handle Switch Return circuit?
  
  Yes
  - Repair the (P125) FRONT LEFT Passive Handle Switch Sense circuit for a short to the (P124) FRONT LEFT Passive Handle Switch Return circuit.
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Radio Frequency Hub (RF Hub) Module in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
  - Perform the RADIO FREQUENCY HUB VERIFICATION TEST. Refer to RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST .
CHECK THE (P125) FRONT LEFT PASSIVE ENTRY HANDLE SWITCH SENSE CIRCUIT
1. Continue with the scan tool still on "FRONT LEFT Door Handle Power".
2. Observe the Value field.
  What does the Value field display?
  
  OFF
  - Replace the Radio Frequency Hub (RF Hub) Module in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
  - Perform the RADIO FREQUENCY HUB VERIFICATION TEST. Refer to RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST .
  ON
  - 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 correct pin tension and repair as necessary. If no problems are found, test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE FRONT LEFT PASSIVE ENTRY HANDLE SWITCH SENSE OR RETURN CIRCUIT FOR AN OPEN
1. Continue with the scan tool still on "FRONT LEFT Door Handle Power".
2. Double click on the Value field to start the graph.
3. Observe the graph for a pulsating line.
  Is the graph pulsating between high and low on the screen?
  
  Yes
  - Go To 6
  No
  - Go To 11
CHECK THE FRONT LEFT DOOR HANDLE FUNCTIONS
1. Stop the graph.
2. Lower the FRONT LEFT door window.
3. Turn the ignition off, remove the FOBIK and close all doors.
4. With the scan tool, select "RFH", "Data" and scroll to "Passive Entry Function Carried Out".
5. Have the FOBIK outside the vehicle and within 1.5 m (5 ft.) of the FRONT LEFT door handle.
  NOTE:
  In the next steps, wait two (2) seconds between each Lock and Unlock activation as there is a two second delay after each Lock action.
6. Press the Lock button and observe the screen for "Passive lock at FRONT LEFT door".
7. Grab and lift the door handle and observe the screen for "Passive entry at FRONT LEFT door".
8. Repeat steps 6 and 7 two more times.
  Is the Module receiving the inputs on the screen as you do them?
  
  Yes
  - 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 correct pin tension and repair as necessary. If no problems are found, test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 12
CHECK THE FRONT LEFT DOOR HANDLE CIRCUITS
1. Remove the FRONT LEFT Exterior Door Handle and disconnect the switch harness connector.
2. Measure the voltage between the (P124) FRONT LEFT Passive Handle Switch Return and the (P125) FRONT LEFT Passive Handle Sense circuits in the FRONT LEFT Exterior Door Handle Switch connector.
  Is the voltage above 11.8 volts?
  
  Yes
  - Replace the FRONT LEFT External Door Handle in accordance with the Service Information. Refer to HANDLE, EXTERIOR, NSTALLATION .
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 13
CHECK THE (P124) FRONT LEFT PASSIVE HANDLE SWITCH RETURN CIRCUIT FOR CONTINUITY
1. Check for continuity between ground and the (P124) FRONT LEFT Passive Handle Switch Return circuit at the FRONT LEFT Exterior Door Handle Switch harness connector.
  Is there continuity between ground and the (P124) FRONT LEFT Passive Handle Switch Return circuit?
  
  Yes
  - Go To 16
  No
  - Go To 14
CHECK THE (P124) FRONT LEFT PASSIVE HANDLE SWITCH RETURN CIRCUIT FOR AN OPEN
1. Disconnect the Radio Frequency Hub (RF Hub) Module C2 harness connector.
2. Measure the resistance of the (P124) FRONT LEFT Passive Handle Switch Return circuit between the RF Hub Module C2 harness connector and the FRONT LEFT Exterior Door Handle Switch harness connector.
  Is the resistance below 2.0 Ohms?
  
  Yes
  - Go To 15
  No
  - Repair the (P124) FRONT LEFT Passive Handle Switch Return circuit for an open.
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (Z916) GROUND CIRCUIT FOR AN OPEN
1. Disconnect the Radio Frequency Hub (RF Hub) Module C1 harness connector.
2. Using a 12-volt test light connected to 12-volts, check the (Z916) Ground circuit at the Radio Frequency Hub Module C1 connector.
  NOTE:
  The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.
  
  Does the test light illuminate brightly?
  
  Yes
  - Replace the Radio Frequency Hub (RF Hub) Module in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
  - Perform the RADIO FREQUENCY HUB VERIFICATION TEST. Refer to RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST .
  No
  - Repair the (Z916) Ground circuit for an open.
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (P125) FRONT LEFT PASSIVE HANDLE SWITCH SENSE CIRCUIT FOR AN OPEN
1. Disconnect the RF Hub Module C2 harness connector.
2. Measure the resistance of the (P125) FRONT LEFT Passive Handle Switch Sense wire between the RF Hub C2 harness connector and the FRONT LEFT Exterior Door Handle Switch harness connector.
  Is the resistance below 2.0 Ohms?
  
  Yes
  - Go To 17
  No
  - Repair the (P125) FRONT LEFT Passive Handle Sense circuit for an open.
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (P125) FRONT LEFT PASSIVE HANDLE SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE
1. Measure the voltage between ground and the (P125) FRONT LEFT Passive Handle Switch Sense circuit at the RF Hub Module C2 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (P125) FRONT LEFT Passive Handle Sense circuit for a short to voltage.
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Radio Frequency Hub (RF Hub) Module in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
  - Perform the RADIO FREQUENCY HUB VERIFICATION TEST. Refer to RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST .