"Truck Manufacturer"
OCT01 and newer Personality Modules.
This parameter is used to configure the correct set of options and/or ranges for the default parameter for the application. The 3126B truck engine with serial number prefix 7AS is equipped with a Basic ECM or the 3126B truck engine is equipped with a Full Feature ECM. The Personality Module software will depend on the vehicle application. The option for the "Truck Manufacturer" parameter is set at the factory to provide the same functionality with one ECM and one set of Personality Module software. If an ECM replacement is required, the "Truck Manufacturer" parameter must be programmed before programming other customer parameters in order to configure the proper set of defaults/ranges. When a Basic ECM is replaced in a General Motors chassis, program the "Truck Manufacturer" parameter to the GM option. When a Full Feature ECM is replaced on a engine in any other chassis, program the "Truck Manufacturer" parameters to "Other".
| Alternative | Default |
| "GM", "Other" | "Not Programmed" |
"Truck Model Type"
OCT01 and newer Personality Modules.
This parameter is used to configure the correct set of options and/or ranges for the default parameter for the application. The option for the "Truck Model Type" parameter is set at the factory. If an ECM replacement is required, the "Truck Model Type" parameter must be programmed before programming other customer parameters in order to configure the proper set of defaults/ranges. When the software is flashed into the Personality Module, this parameter will default to "GM 530/540".
| Alternative | Default |
| "GMT-560" | "GM530/540" |