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 MANUALSCHEVROLET2000C TAHOE 2WD V8-5.7L VIN RREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULESERVICE AND REPAIRVCM PROGRAMMING
2000 Chevrolet C Tahoe 2WD V8-5.7L VIN R
VCM Programming
2000 Chevrolet C Tahoe 2WD V8-5.7L VIN RSECTION VCM Programming
1. Take the following steps in order to set-up for programming the VCM Electrically Erasable Programmable Read Only Memory (EEPROM).
^ The battery is fully charged.
^ The ignition is ON.
^ The scan tool connection to the Data Link Connector (DLC) is secure.
2. Refer to an updated Techline terminal and follow the users instructions for VCM programming.
3. If the VCM fails to program, do the following functions:
^ Check all the VCM connections.
^ Check the ITCS terminal and equipment for the latest software version.
^ Try again to program the VCM. If the programming fails again, replace the VCM.
4. Perform the Passlock Reprogramming Procedure. Refer to PASSLOCK Reprogramming Seed and key in Antitheft and Alarm Systems.
5. Perform the CKP System Variation Learn Procedure. Refer to CKP System Variation Learn Procedure.
6. For a functional check, perform the Powertrain On-Board Diagnostic (OBD) System Check.
^ The battery is fully charged.
^ The ignition is ON.
^ The scan tool connection to the Data Link Connector (DLC) is secure.
2. Refer to an updated Techline terminal and follow the users instructions for VCM programming.
3. If the VCM fails to program, do the following functions:
^ Check all the VCM connections.
^ Check the ITCS terminal and equipment for the latest software version.
^ Try again to program the VCM. If the programming fails again, replace the VCM.
4. Perform the Passlock Reprogramming Procedure. Refer to PASSLOCK Reprogramming Seed and key in Antitheft and Alarm Systems.
5. Perform the CKP System Variation Learn Procedure. Refer to CKP System Variation Learn Procedure.
6. For a functional check, perform the Powertrain On-Board Diagnostic (OBD) System Check.
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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.