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.

CHECK FOR ANY SERVICE BULLETINS THAT APPLY
1. Before proceeding with this test procedure, perform any Service Bulletins or Powertrain Control Module (PCM) Flash updates that relate to this fault code.
  Are there any Service Bulletins or PCM Flash updates available?
  
  Yes
  - Perform the applicable Service Bulletins or PCM Flash update.
  - Verify the system is not leaking by performing the Engine Off (Non-Intrusive) Leak Evaluation, Go To 2
  No
  - Go To 2
CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, check for an active DTC and record on the repair order.
3. Erase all the DTCs.
4. Cycle the ignition from off to on.
5. Press and hold the brake pedal.
6. Push the EPB Switch down to release the Electric Parking Brakes.
7. Pull the EPB Switch up to set the Electric Parking Brakes.
8. Push the EPB Switch down to release the Electric Parking Brakes.
9. Release the brake pedal.
10. Cycle the ignition from off to on.
11. With the scan tool, read EPB DTCs.
  Is the DTC active or pending?
  
  Yes
  - Go To 3
  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 MAINTENANCE CLOSED ROUTINE
1. Turn the ignition on.
2. With the scan tool, in the "Service Procedure Menu" perform the Maintenance Closed routine.
3. With the scan tool, erase the DTCs.
4. Cycle the ignition from off to on.
5. With the scan tool, read EPB DTCs.
  Does the DTC remain active?
  
  Yes
  - Replace the Electric Parking Brake (EPB) Module in accordance with Service Information. Refer to MODULE, ELECTRIC PARK BRAKE (EPBM), REMOVAL .
  - Perform the EPB VERIFICATION TEST. Refer to EPB VERIFICATION TEST .
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time.
  - Perform the EPB VERIFICATION TEST. Refer to EPB VERIFICATION TEST .