Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSJEEP2009COMMANDER OVERLAND, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSWIRELESS IGNITION MODULE (WIN) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB2229-SKREEM INTERNAL - SKIM IMMOBILIZERDIAGNOSTIC TEST

2009 Jeep Commander Overland, RWD

Diagnostic Test

2009 Jeep Commander Overland, RWDSECTION Diagnostic Test

VERIFY THAT THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE
1. Turn the ignition on.
  NOTE:
  Before continuing, review and check for the following:
  - Review the repair history of the vehicle.
  - Make sure that the vehicle has the correct PCM and WIN installed by verifying the part numbers.
  - With the scan tool, ensure that the PCM and WIN are programmed correctly. Compare the PCM VIN to the WIN VIN and ensure the two VINs match.
2. With the scan tool, record and erase the DTCs.
3. Perform 3 ignition cycles, leaving the ignition switch on for a minimum of one minute per cycle.
4. With the scan tool, read the active DTCs.
  Does the scan tool display; B2229-SKREEM INTERNAL - SKIM IMMOBILIZER as active?
  
  Yes
  - If the engine does not crank, Go To 2
  - If the engine does crank, Go To 2 and answer "Yes" to the question in step 2.
  No
  - Perform the WIRELESS IGNITION NODE (WIN) INTERMITTENT TEST. See DTC-Based Diagnostics/NODE, Wireless Ignition (WIN) - Standard Procedure .

ENGINE DOES NOT CRANK

NOTE: When diagnosing any WIN system concern, all FOBIKS should be present

If this vehicle does not crank, use the table below to determine if the key is functional or not. With the scan tool under Data Display, Bussed Outputs, put the key in each position and check the "Ignition Status". Then with the key in the Run position, check "Valid Skim Key" and "SCREEM Status" reported by the WIN (or WCM). Compare all six readings with the "Good Key" column.

BUSSED OUTPUTS	-	-	-	-
Ignition Status	Good Key	Bad Key (Failed)	Wrong Key	New Key (Blank)
Ignition Position = Lock	-------------- or Lock	--------------	--------------	-------------- or Lock
Ignition Position = ACC.	Off/ACC.	--------------	--------------	Off/ACC.
Ignition Position = Run Or ON	Run	Lock	Lock	Run
Ignition Position = Start Engine Off - Trans. in Gear	Start or Run	Lock	Lock	Run
SKREEM Status	Normal Status	Service SKREEM	Invalid Key	Key Not Programmed
Valid Skim Key	Yes/True	No/False	No/False	No/False
-	-	-	-	-
Trouble Code (DTC)	-	B2229, B1A35	B1A6C, B1A25	B1A24

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.