OBD2 code U0024: Low Speed CAN Communication Bus Off
The low-speed CAN controller has gone bus-off after repeated error frames.
Detected Root Component
Network Component
Observed 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
Possible Causes
- Wiring short keeps bus in bus-off
- One failing node spamming errors
- Gateway module routing CAN messages incorrectly
Tools Required
Interactive Diagnostic
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Parts likely to be the cause (Moteur (général))
Moteur (général)
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Frequently asked questions about code U0024
What does code U0024 mean? ▾
OBD2 code U0024: Low Speed CAN Communication Bus Off. The low-speed CAN controller has gone bus-off after repeated error frames.
What are the symptoms of code U0024? ▾
Code U0024 may cause: 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. The intensity of these symptoms varies depending on the vehicle and driving conditions.
What causes code U0024? ▾
The most common causes of code U0024 are: Wiring short keeps bus in bus-off, One failing node spamming errors, Gateway module routing CAN messages incorrectly. A proper OBD2 diagnostic will pinpoint the exact cause.
Is it serious to drive with code U0024? ▾
Yes, code U0024 is critical (Critical). Avoid driving and consult a professional promptly to prevent major damage.
How do I fix code U0024? ▾
Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Wiring short keeps bus in bus-off, One failing node spamming errors, Gateway module routing CAN messages incorrectly. Difficulty: Medium · Estimated time: 30-60min.