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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 45 ((Electric Parking Brake (EPB) Module - Electrical Diagnostics)) >> Standard Procedure >> EPB Verification Test

EPB Verification 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.

EPB VERIFICATION TEST 

NOTE:

If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to align the PROXI configuration data into the new ECU. Follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under Body Control Module (BCM) "Miscellaneous Functions" menu.

  1. Turn the ignition off to the lock position.
  2. Remove all test equipment.
  3. Connect all previously disconnected components and connectors.
  4. Verify all accessories are turned off, the battery is fully charged and the charging system has a status of "recharging".
  5. Verify that the ignition is on. With the scan tool, record and erase all DTCs from all modules. Start the engine and allow it to run for two minutes.
  6. Cycle the ignition from off to on.
  7. Push the EPB Switch down to release the Electric Parking Brakes.
  8. Pull the EPB Switch up to set the Electric Parking Brakes.
  9. Push the EPB Switch down to release the Electric Parking Brakes.
  10. Cycle the ignition from off to on.
  11. While pressing the brake pedal push the EPB Switch down to release the Electric Parking Brakes.
  12. Turn the ignition off and wait ten seconds. Turn the ignition on and using the scan tool, read the DTCs from all modules.
  13. If there are no DTCs present after turning ignition on, road test the vehicle for at least five minutes.
  14. Again, with the scan tool read DTCs. If any DTCs are present, refer to the applicable article for the Diagnostic procedure and troubleshoot the new or recurring symptom.
  15. If there are no DTCs present and the customer's concern can no longer be duplicated, the repair is complete.

    Are any DTCs present or is the original concern still present?

    Yes 

    No 

    • Repair is complete.
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