F 250 4WD Super Duty V10-6.8L VIN S (2001)
Multiplex Communication Network: Testing and Inspection
Module Configuration
Configurable Modules
Programmable Parameter Index
The vehicle contains the following modules that are configurable:
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Anti-lock Brake (ABS) module (if equipped)
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Generic Electronic Module (GEM)/Central Timer Module (CTM)
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Overhead Trip Computer (OTC) (if equipped)
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Electronic Crash Sensor (ECS)
Principles of Operation - Module Configuration
Some modules must be programmed as part of the repair procedure. If this procedure is not followed the module will not function correctly and may set a
number of DTCs, including B2477 or P1639, which indicate that some necessary data has not been programmed into the module.
Modules that need programming should not be exchanged between vehicles. In most cases the parameter values or settings are unique to that vehicle, and
if not set correctly will cause concerns or faults.
Some programmable parameters, such as belt minder on/off, can be changed from the factory setting at the customer's request.
WDS will automatically attempt to retrieve the module configuration information from all modules, and from a backup location in the Powertrain
Control Module (PCM) when vehicle ID is carried out. If the module and the PCM do not contain correct information the diagnostic tool will either
request "As Built" data or display a list of items that you will need to manually configure. The diagnostic tool will program the module based on the data
you enter.
There are three different methods that are used for module programming:
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Programmable Module Installation (PMI)
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calibration update
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programmable parameters
Some modules do not support all three methods.
Programmable Module Installation (PMI)
The programmable module installation (PMI) method is used when a new programmable module is installed on the vehicle. It is no longer necessary
to command the diagnostic tool to gather module option content from the old module. The diagnostic tool automatically obtains any available module
option content information from the old module during the vehicle ID routine that runs when the diagnostic tool is initially connected to the vehicle. It
is important that you connect WDS to the vehicle and allow it to identify the vehicle and obtain configuration data prior to removing any modules.
Calibration Update
Calibration update is used to install a new calibration and strategy into a module. The updates are usually issued to fix a concern in the module
software and would normally be addressed by a Technical Service Bulletin (TSB). This method has been used by the PCM for several years. Other
modules will be adopting this strategy as well.
Programmable Parameters
This method is used to configure parameters that can be modified in service. These are typically at the preference of the customer. Not all features
controlled by the module are listed in this configuration method. Refer to the Module Configuration Index for a list of features by system.
If a module that has been modified using programmable parameters needs to be installed, the PMI procedure will maintain the parameters in their
altered state if WDS is able to communicate with the old module during Vehicle ID. Otherwise you may need to use programmable parameters to
return them to the altered state.
Vehicle Identification (VID) Block
Some PCMs contain a memory area called a Vehicle Identification (VID) block. The VID block is used to store backup data for each programmable
module, as well as, powertrain configuration information.
