Internal Control Module Software Incompatibility
A control module has detected that its software version is incompatible with another module on the bus. Most often after a partial update, mismatched coding, or fitting a used module from a different vehicle.
Affected components
- Control module
Common causes
- High likelihood: Software/calibration mismatch between modules
- Medium likelihood: Used module from different vehicle fitted
- Medium likelihood: Incomplete or interrupted module flash
Possible symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.