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.
Programming The Powertrain Control Module
Important Note: Before replacing the PCM for a failed driver, control circuit or ground circuit, be sure to check the related component/circuit integrity for failures not detected due to a double fault in the circuit. Most PCM driver/control circuit failures are caused by internal failure to components (i.e. 12-volt pull-ups, drivers and ground sensors). These failures are difficult to detect when a double fault has occurred and only one DTC has set.
The SKREES Secret Key is an I.D. code that is unique to each SKREES. This code is programmed and stored in the SKREEM, engine controller and transponder chip (ignition key). When replacing the PCM it is necessary to program the secret key into the PCM.
- Turn the ignition on (transmission in park/neutral).
- Use the DRBIII® and select THEFT ALARM, SKREEM then MISCELLANEOUS.
- Select PCM REPLACED.
- Enter secured access mode by entering the vehicle four-digit PIN.NOTE: If three attempts are made to enter the secure access mode using an incorrect PIN, secured access mode will be locked out for one hour. 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).
- Press ENTER to transfer the secret key (the SKREEM will send the secret key to the PCM).
NO RELATED
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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.