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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1999EXPRESS 1 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULESERVICE AND REPAIRVCM PROGRAMMING
1999 Chevrolet Express 1 Ton Van V8-5.7L VIN R
VCM Programming
1999 Chevrolet Express 1 Ton Van V8-5.7L VIN RSECTION VCM Programming
1. Take the following steps in order to set-up for the VCM (EEPROM) Programming.
^ The battery is fully charged.
^ The ignition is ON.
^ The Data Link Connector (DLC) is secure.
2. Refer to up-to-date Techline terminal and equipment user's instructions in order to program the VCM.
3. If the VCM fails to program, do the following functions:
^ Check all the VCM connections.
^ Check the Techline terminal and equipment for the latest software version.
^ Try again to program the VCM. If it fails again, replace the VCM.
4. Perform the Passlock Reprogramming Procedure. Refer to PASSLOCK Reprogramming Seed and Key in Theft Deterrent.
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. Refer to A Powertrain On Board Diagnostic (OBD) System Check.
^ The battery is fully charged.
^ The ignition is ON.
^ The Data Link Connector (DLC) is secure.
2. Refer to up-to-date Techline terminal and equipment user's instructions in order to program the VCM.
3. If the VCM fails to program, do the following functions:
^ Check all the VCM connections.
^ Check the Techline terminal and equipment for the latest software version.
^ Try again to program the VCM. If it fails again, replace the VCM.
4. Perform the Passlock Reprogramming Procedure. Refer to PASSLOCK Reprogramming Seed and Key in Theft Deterrent.
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. Refer to A Powertrain On Board Diagnostic (OBD) System Check.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.