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 MANUALSJEEP2009WRANGLER RUBICON, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSWIRELESS CONTROL MODULE (WCM) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB2254-COLUMN LOCK MODULE INTERNALDIAGNOSTIC TEST

2009 Jeep Wrangler Rubicon, Standard

Diagnostic Test

2009 Jeep Wrangler Rubicon, StandardSECTION 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:
  - The battery voltage must be above 10 volts.
  - Review the repair history of the vehicle.
  - Ensure that the PCM and WCM are programmed correctly. Compare the PCM VIN to the WCM VIN and ensure the two VINs match.
2. With the scan tool, clear DTCs.
3. Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 90 seconds per cycle.
4. With the scan tool, read DTCs.
  Is the DTC active?
  
  Yes
  - Replace and program the Wireless Control Module and Steering Column Lock Module in accordance with the Service Information.
  - Perform the WCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure
  No
  - The DTC is not active at this time. Test complete.

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.