Special Tools Illustration Tool Name Tool Number Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool
Scheme 88
Principles of Operation
Configurable modules accommodate a variety of vehicle options, eliminating the need for many unique modules for one vehicle line. These modules must be configured when replaced as part of a repair procedure.
Configurable modules should not be exchanged between vehicles since the settings are unique to each vehicle. Failure to configure a new module may result in incorrect operation and/or any of the following DTCs setting
- B2477 and/or B2141 - sets when a body/chassis module is not configured.
- B2900 - sets when there is a VIN mismatch between the module with the B2900 and the PCM. Either the PCM or the body module stored VIN may be incorrect.
- P0602, P0605 and/or P1639 - sets when the PCM vehicle identification (VID) block is not configured or is configured incorrectly.
- U0300 - sets when the configuration between 2 or more modules do not match.
- U2050 and/or U2051 - sets when a valid strategy/calibration is not present.
The following are the 3 different methods of configuration
- Programmable module installation (PMI)
- Module reprogramming ("flashing")
- Programmable parameters
Some modules do not support all 3 methods.