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 MANUALSCHEVROLET2003S10 PICKUP 2D PICKUP, 2.2 H, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 11 (COMPUTER RELEARN PROCEDURES)JEEPPOWERTRAIN CONTROL MODULE PROGRAMMINGUPDATING SECRET KEY DATA
2003 Chevrolet S10 Pickup 2D Pickup, 2.2 H, Automatic
Updating Secret Key Data
2003 Chevrolet S10 Pickup 2D Pickup, 2.2 H, AutomaticSECTION Updating Secret Key Data
WARNING: This page does not describe the selected car, but rather 120 other vehicles, including the 2002 Saturn Vue, 2002 Saturn SL2, 2002 Saturn SL1, 2002 Saturn SL, and 2002 Saturn SC2. However, it is still accessible from the selected car via links, so may be relevant.
- Connect DRBIII® scan tool to Data Link Connector (DLC) located below left side of instrument panel. Ensure transmission is in Park (A/T) or Neutral (M/T). Turn ignition on. Using scan tool, select THEFT ALARM, SKIM, and then MISCELLANEOUS. Select PCM REPLACED.
- Place the SKIM in SECURED ACCESS MODE by entering the appropriate 4-digit Personal Identification Number (PIN) for this vehicle. PIN may be obtained from the owner, vehicle's invoice, or from the manufacturer. Press ENTER to transfer secret key data from Sentry Key Immobilizer Module (SKIM) to the PCM. This will enable the vehicle to start.
- If 3 attempts are made to enter the SECURED ACCESS MODE by using an incorrect PIN, the SECURED ACCESS MODE will be locked out for one hour. To exit lock out mode, leave ignition on with all accessories turned off. After one hour, enter correct PIN. It may be necessary to monitor battery voltage and connect a battery charger.
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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.