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Home >> GMC >> 1993 >> S15/T15 2WD P/U V6-262 4.3L VIN Z >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Service and Repair >> Control Module Replacement >> VCM (Manual Transmission)
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VCM (Manual Transmission)

Control Module Mounting:






NOTE:

[a] Service is limited to replacement of control module. If the diagnostics call for replacement of the control module, it will be necessary to transfer the PROM (MEM-CAL) and program the EEPROM in the control module. Programming of the EEPROM will NOT possible without "Techline" terminal/equipment.

[b] When replacing a production control module with a service controller, transfer the broadcast DTC and production control module part number to the controller label. DO NOT record information on the access cover.

CAUTION:

[a] The ignition must be "OFF," when disconnecting or reconnecting the control module connector, to prevent internal damage to the control module.

[b] To prevent possible Electrostatic Discharge to the control module, DO NOT touch the connector pins or soldered components on the circuit boards.


REMOVAL:

1. Disconnect the negative battery terminal.
2. Remove right hand hush panel.
3. Disconnect control module harness connectors.
4. Remove control module mounting hardware.
5. Remove control module from passenger compartment.
6. Remove the control module access cover.
7. Refer to PROM (MEM-CAL) REPLACEMENT.

INSTALLATION:

1. Install control module into the passenger compartment.
2. Connect the control module harness connectors.
3. Install hush panel.
4. The Malfunction Indicator Lamp (MIL) will continue to flash until the control module is programmed. Once programming is complete, the lamp will be turned "OFF" and normal MIL operation will occur.
5. Refer to EEPROM PROGRAMMING.
6. Connect the negative battery terminal.
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