Code result
U0305
Software Incompatibility with Cruise Control Module
Moderate severity
What it means
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.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Software/calibration mismatch with cruise module
highOne of the most commonly reported causes for this code — check this first.
Used cruise module from different vehicle fitted
mediumA plausible cause — test and verify before replacing parts.
Gateway module routing CAN messages incorrectly
lowLess common, but worth ruling out after the more likely causes.
Related help
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