K 2500 Truck 4WD V8-305 5.0L VIN M SFI (1996)
Engine Control Module: Service and Repair
EEPROM Programming
CAUTION: The ignition should always be "off" when installing or removing the Vehicle Control Module (VCM) connectors.
1. Set-up:
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Battery is charged.
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Ignition is "ON."
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Battery/cig. lighter Connection secure.
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Data Link Connector (DLC).
2. Refer to up-to-date Techline terminal/equipment user's instructions.
3. If Vehicle Control Module (VCM) fails to program, do the following:
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Check all VCM connections.
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check Techline terminal/equipment for latest software version.
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Try again to program the VCM. If it fails again, replace the VCM. Refer to VCM replacement. See: Control Module Replacement
4. Perform the Idle Air Control (IAC) valve reset procedure with the scan tool. use misc. test.
5. For a functional check perform one of the steps:
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Use the Techline terminal and equipment in order to perform the On-Board Diagnostic (OBD) System Check
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Refer to Powertrain OBD System Check. See: Testing and Inspection
