OBD2 code U0016: Medium Speed CAN Communication Bus Off
A controller on the medium-speed comfort bus has shut its transceiver off after too many consecutive transmit errors.
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 forces bus-off state
- One failing node corrupts traffic
- 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 U0016
What does code U0016 mean? ▾
OBD2 code U0016: Medium Speed CAN Communication Bus Off. A controller on the medium-speed comfort bus has shut its transceiver off after too many consecutive transmit errors.
What are the symptoms of code U0016? ▾
Code U0016 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 U0016? ▾
The most common causes of code U0016 are: Wiring short forces bus-off state, One failing node corrupts traffic, Gateway module routing CAN messages incorrectly. A proper OBD2 diagnostic will pinpoint the exact cause.
Is it serious to drive with code U0016? ▾
Yes, code U0016 is critical (Critical). Avoid driving and consult a professional promptly to prevent major damage.
How do I fix code U0016? ▾
Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Wiring short forces bus-off state, One failing node corrupts traffic, Gateway module routing CAN messages incorrectly. Difficulty: Medium · Estimated time: 30-60min.