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.

2002 Chrysler 300M BaseFACTORY OEM SERVICE PROCEDURE

Programming PCM

To program PCM, connect DRBIII(R) to Data Link Connector (DLC). DLC is located below driver's side of instrument panel. See Fig 1 . Place transmission in Park or Neutral. Turn the ignition on, with the engine off.
Using DRBIII(R), select THEFT ALARM, SKIM then MISCELLANEOUS.
Select PCM REPLACED.

NOTE: If 3 attempts are made to enter the secure access mode using an incorrect Personal Identification Number (PIN), secured access mode will be locked out for one hour (the vehicle will still run). To exit this lockout mode, turn the ignition to the RUN position for one hour then enter the correct PIN. (Ensure all accessories are turned off. Also, monitor the battery state and connect a battery charger if necessary).

Enter secured access mode by entering the vehicle four-digit PIN.
Press ENTER to transfer the secret key data (the SKIM will send the secret key data to the PCM).

Fig 1: Locating Data Link Connector

Courtesy of DAIMLERCHRYSLER CORPORATION

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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.

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