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Home DTC Codes U0013 Medium · 30-60min
U0013 Critical

OBD2 code U0013: CAN communication bus - Network fault

CAN bus communication fault.

ECU: ECM

Detected Root Component

Network Component

Confidence level: low

Observed Symptoms

  • Loss of communication between modules
  • Dashboard errors
  • Unresponsive module

Possible Causes

  • Damaged CAN wiring
  • Missing CAN termination resistor
  • CAN bus short circut module
  • Damaged wiring
Diagnostic Progress 0 %
Difficulty Medium
Est. time 30-60min
Tools Required 4 tool(s)

Tools Required

multimeter OBD scanner wiring diagram oscilloscope (optional)

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Diagnostic Result

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Parts likely to be the cause (Moteur (général))

Moteur (général)

Moteur (général)

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Frequently asked questions about code U0013

What does code U0013 mean?

OBD2 code U0013: CAN communication bus - Network fault. CAN bus communication fault.

What are the symptoms of code U0013?

Code U0013 may cause: Loss of communication between modules, Dashboard errors, Unresponsive module. The intensity of these symptoms varies depending on the vehicle and driving conditions.

What causes code U0013?

The most common causes of code U0013 are: Damaged CAN wiring, Missing CAN termination resistor, CAN bus short circuit module, Damaged wiring. A proper OBD2 diagnostic will pinpoint the exact cause.

Is it serious to drive with code U0013?

Yes, code U0013 is critical (Critical). Avoid driving and consult a professional promptly to prevent major damage.

How do I fix code U0013?

Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Damaged CAN wiring, Missing CAN termination resistor, CAN bus short circuit module, Damaged wiring. Difficulty: Medium · Estimated time: 30-60min.