U0305
Software Incompatibility with Cruise Control Module
A control module has detected that its software/calibration is incompatible with the cruise control module. Cruise control may be disabled until matching software is flashed.
A control module has detected that its software/calibration is incompatible with the cruise control module. Cruise control may be disabled until matching software is flashed.
Common causes
- high
Software/calibration mismatch with cruise module
One of the most commonly reported causes for this code — check this first.
Typical part cost: $90-660
- medium
Used cruise module from different vehicle fitted
A plausible cause — test and verify before replacing parts.
Typical part cost: $90-660
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does U0305 mean?
U0305 means "Software Incompatibility with Cruise Control Module". It is a generic OBD-II code that points to a fault in the network / communication.
What are the most common causes of U0305?
software/calibration mismatch with cruise module; used cruise module from different vehicle fitted; gateway module routing can messages incorrectly — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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