Diagnostic Test

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

TEST HANDLE HALL SENSOR
NOTE:
Verify that the magnet is present in the Door Handle Cap. If the magnet is present, then continue with the diagnostic procedure. If the magnet is NOT present, replace the Door Handle Cap first.

NOTE:
Before proceeding, check the handle for any foreign material, or binding, that could cause a sticking situation to the handle or switch.

NOTE:
If there are any other active RF Hub DTCs, perform the diagnostic procedure for them before proceeding.
1. Turn the ignition on.
2. With the scan tool, create a Vehicle Scan Report and attach it to the repair order.
3. Make sure that the door handle is in the home position (not pulled).
4. With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
5. With the scan tool, select "RFH", "Data" and scroll to "Last Message: Passenger Door Handle Hall Signal".
6. Observe the value field.
  Does the scan tool display: YES?
  
  Yes
  - Replace the Passenger Exterior Door Handle in accordance with the Service Information. Refer to HANDLE, INTERIOR, 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 .
  No
  - Go To 2
TEST FOR STUCK LOCK SWITCH
1. With the scan tool, select "RFH", "Data" and scroll to "Last Message: Passenger Door Handle Lock Signal".
2. Observe the value field.
  Does the scan tool display: YES?
  
  Yes
  - Replace the Passenger Exterior Door Handle in accordance with the Service Information. Refer to HANDLE, INTERIOR, 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 .
  No
  - Go To 3
DOOR HANDLE OPERATION
1. Open the Passenger door window.
2. Turn the ignition off, remove the FOBIK and close all doors.
3. Have the FOBIK outside the car and within 10 cm. and 1.5 m. (4 in. and 5 ft.) of the Passenger 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.
4. Lock and Unlock the Passenger Door by the outside handle four (4) times.
5. Open the Passenger Door by pulling the handle.
  Did the Door Handle Lock and Unlock the door as it should?
  
  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 4
DOOR HANDLE OR RF HUB
1. Turn the ignition on and open the Driver door window.
2. Turn the ignition off, remove the FOBIK and close all doors.
3. Have the FOBIK outside the car and within 10cm. and 1.5 m. (4 in. and 5 ft.) from the Driver 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.
4. Lock and Unlock the Driver Door by the outside handle four (4) times.
5. Using the handle lock switch, lock the doors.
6. Open the Driver Door by pulling the handle.
  Did the Driver Door Handle Lock and Unlock the door as it should?
  
  Yes
  - Replace the Passenger Exterior Door Handle in accordance with the Service Information. Refer to HANDLE, INTERIOR, 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 .
  No
  - Replace the 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 .