U0013
Medium Speed CAN Communication Bus (+) Low
U0013 is an OBD-II diagnostic trouble code meaning: Medium Speed CAN Communication Bus (+) Low. Common causes: broken or damaged can bus wires, poor contact in bus connectors. Estimated repair cost: $6–56.
Symptoms
- Check Engine light comes on
- Incorrect operation of vehicle systems
- Problems with data transfer between modules
- Intermittent electronic malfunctions
- Possible problems starting the engine
Causes
- Broken or damaged CAN bus wires
- Poor contact in bus connectors
- Short circuit in the CAN bus circuit
- Fault in one of the modules connected to the bus
- Problems with module power supply
How to Fix
- Check the integrity of the CAN bus wires
- Inspect connectors for oxidation or damage
- Check the voltage on the CAN bus
- Diagnose modules connected to the bus
- Replace damaged components if necessary
Related codes
Error U0013 by Vehicle Brand
FAQ
What does the U0013 code mean?
U0013 is an OBD-II diagnostic trouble code that indicates: Medium Speed CAN Communication Bus (+) Low
What causes a U0013 error code?
The most common causes of U0013 include: Broken or damaged CAN bus wires; Poor contact in bus connectors; Short circuit in the CAN bus circuit; Fault in one of the modules connected to the bus.
How do I fix a U0013 diagnostic trouble code?
To fix U0013: Check the integrity of the CAN bus wires. Inspect connectors for oxidation or damage. Check the voltage on the CAN bus. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0013?
Do not drive — repair immediately
How much does it cost to fix U0013?
The estimated repair cost for U0013 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat