U0305
Software Incompatibility With Cruise Control Module
U0305 is an OBD-II diagnostic trouble code meaning: Software Incompatibility With Cruise Control Module. Common causes: outdated cruise control module software, software version mismatch between modules. Estimated repair cost: ~$167.
Symptoms
- Disabling the cruise control system
- The Check Engine light comes on
- Inability to activate cruise control
- Adaptive cruise control intermittent (if equipped)
Causes
- Outdated cruise control module software
- Software version mismatch between modules
- Data corruption in ECU memory
- Incorrect module reprogramming
- Software update problems
How to Fix
- Check whether the cruise control module software is up to date
- Update module software
- Check compatibility of software versions in related systems
- Reset adaptations after software update
- Check the integrity of the wiring harness between the modules
Related codes
Error U0305 by Vehicle Brand
FAQ
What does the U0305 code mean?
U0305 is an OBD-II diagnostic trouble code that indicates: Software Incompatibility With Cruise Control Module
What causes a U0305 error code?
The most common causes of U0305 include: Outdated cruise control module software; Software version mismatch between modules; Data corruption in ECU memory; Incorrect module reprogramming.
How do I fix a U0305 diagnostic trouble code?
To fix U0305: Check whether the cruise control module software is up to date. Update module software. Check compatibility of software versions in related systems. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0305?
Yes, but get it checked soon
How much does it cost to fix U0305?
The estimated repair cost for U0305 is ~$167. Actual cost depends on your vehicle, location, and labor rates.
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