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.
Powertrain Control Module Programming
Powertrain Control Module (PCM) can only be programmed using pass-through programming method. Pass-through programming method requires use of a scan tool in series with Techline(R) terminal and Data Link Connector (DLC). Perform EEPROM programming using Techline equipment manufacturer's instructions and latest software applicable for vehicle model.
Once EEPROM is reprogrammed, Crankshaft Position (CKP) sensor variation learn procedure must be performed using proper procedure. On 2001 models, see COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. On 2002 models, see COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. Program theft deterrent system. See PASSLOCK(tm) LEARN PROCEDURE .
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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.