Software Incompatibility With A/C Compressor Control Module
A module reports a software version mismatch with the A/C compressor control module — typically after replacing one of the modules without programming the new unit to match the rest of the network.
Affected components
- Ac compressor module
Common causes
- High likelihood: Module replaced without programming
- Medium likelihood: Wrong part number for the vehicle
- Low likelihood: Gateway module routing CAN messages incorrectly
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
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.