Serial Data Gateway Module Replacement for GMC Truck TopKick C-Series (Conventional) C4/C5 2007

1. Remove the engine cover. Refer to Engine Cover Replacement .
2. Reach under the instrument panel just to the left of the engine to locate the module.
3. Remove the connector from the module.
4. Release the clips that retain the module.
5. Remove the module from the vehicle.

1. Install the module to the vehicle.
2. Clip in the module retainers.
3. Install the connector to the module.
4. Install the engine cover. Refer to Engine Cover Replacement .
5. Refer to Control Module References for programming and setup information.