LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2008 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0420 To P0563 >> P0513-Invalid Skim Key >> Diagnostic Test
September 30: LEMON manuals is back up on a temporary server! Slowness is possible

Diagnostic Test

  1. ACTIVE DTC 

    Ignition on, engine not running.

    With the scan tool, select View PCM DTCs.

    Is the DTC Active at this time? 

    Yes 

    1. Go To  2.

    No 

    1. Go To  6.
  2. NO COMMUNICATION WITH SKIM 

    With the scan tool, attempt to communicate with the SKIM.

    Can the scan tool communicate with the SKIM? 

    Yes 

    1. Go To  3.

    No 

    1. Refer to VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS and perform the appropriate Diagnostic Procedure.
    2. Perform SKREEM/SKIM VERIFICATION TEST .
  3. SKIM TROUBLE CODES SET 

    With the scan tool, check for SKIM DTCs.

    Are any DTCs present in the SKIM? 

    Yes 

    1. Refer to VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS and perform the appropriate Diagnostic Procedure.
    2. Perform SKREEM/SKIM VERIFICATION TEST .

    No 

    1. Go To  4.
  4. VIN PROGRAMMED INTO PCM 

    With the scan tool, display the VIN that is programmed in the PCM.

    Has a VIN been programmed into the PCM? 

    Yes 

    1. Go To  5.

    No 

    1. Program the correct VIN into the PCM and retest.
    2. Perform SKREEM/SKIM VERIFICATION TEST .
  5. POWERTRAIN CONTROL MODULE (PCM) 

    Turn the ignition off.

    Replace and program the SKIM per Service Information.

    Ignition on, engine not running.

    With the scan tool, erase all SKIM and PCM DTCs.

    Attempt to start and idle the engine.

    With the scan tool, select View PCM DTCs.

    Does the scan tool display this code? 

    Yes 

    NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. Replace and program the Powertrain Control Module per Service Information.
    1. Perform SKREEM/SKIM VERIFICATION TEST .

    No 

    1. Test Complete.
  6. IGNITION KEY 
    NOTE: You must obtain the SKIM pin number.
    NOTE: This DTC could have been set if the SKIM harness connector was disconnected, or if the SKIM was replaced recently.
    NOTE: All keys that the customer uses for this vehicle must be tested to verify they are operating properly.

    Ignition on, engine not running.

    Verify the correct VIN is programmed into the PCM and SKIM.

    Turn the ignition off.

    With the next customer key turn the ignition key on and crank the engine to start.

    With the scan tool, read the PCM DTCs. Look for P0513.

    Is the DTC P0513 still active? 

    Yes 

    1. Replace the Ignition Key.
    2. Perform SKREEM/SKIM VERIFICATION TEST .

    No 

    1. Test Complete.
      NOTE: If this DTC cannot be reset, it could have been an actual theft attempt.
scientia non olet · About LEMON Manuals