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.
2009 Chrysler PT Cruiser Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Diagnostic Test
- VERIFY THAT THE DTC IS ACTIVE
- Turn the ignition on.NOTE: Before continuing, review and check for the following:
- Review the repair history of the vehicle.
- Ensure that the vehicle has the correct PCM and WCM installed by verifying the part numbers.
- With the scan tool, ensure that the PCM and WCM are programmed correctly. Compare the PCM VIN to the WCM VIN and ensure the two VINs match.
- With the scan tool, clear DTCs.
- Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 90 seconds per cycle.
- With the scan tool, read DTCs.
Does the DTC reset?
Yes
- Replace and program the Wireless Control Module in accordance with the Service Information.NOTE: If this vehicle is equipped with a Steering Column Lock Module, it must be replaced along with the WCM.
- 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.
- Replace and program the Wireless Control Module in accordance with the Service Information.
- Turn the ignition on.
Factory Service Tools
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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.