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Home >> Jeep >> 2018 >> Compass Trailhawk >> Repair and Diagnosis >> External Pages >> Different car >> Section 120 ((Radio Frequency (RF Hub) Module)) >> DTC Troubleshooting >> B1A09-00 RKE Fob 2 Performance >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2019 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    NOTE:

    All FOBIKs used with this vehicle should be present during this test.

    NOTE:

    Verify that the battery is fully charged with a DVOM and use the scan tool to compare the Battery Voltage listed under "Data" in the RFH View to that of the BCM. If the battery is not fully charged, correct this condition before proceeding.

    1. Use the alleged inoperative FOBIK, cycle/press (if equipped with Keyless Go, the KIN button) the ignition on.
      NOTE:

      On the Passive Entry Keyless Go (PEKG)/Keyless Ignition Node (KIN) system, using the rounded end of the FOBIK to press the Stop/Start button can cycle the ignition even if the battery in the FOBIK is inop.

    2. With the scan tool, read Radio Frequency Hub Module (RFHM) DTCs and record on the repair order.
    3. Press the lock/unlock button of the alleged inoperative FOBIK several times.
    4. With the scan tool, read RFHM DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

  2. CHECK THE FOBIK 
    1. With the scan tool, erase the DTCs.
    2. Turn the ignition off.
    3. Put the inoperative FOBIK in the vehicle.
    4. With the good FOBIK, start and drive the vehicle above five miles per hour for one mile.
    5. Turn the ignition off.
    6. Operate the inoperative FOBIK in all positions several times.
    7. With the scan tool, read RFHM DTCs.

      Is the DTC active?

      Yes 

      • Replace the FOBIK and program using the scan tool.

      No