U0007
High Speed CAN Communication Bus (-) Low
U0007 is an OBD-II diagnostic trouble code meaning: High Speed CAN Communication Bus (-) Low. Common causes: open or short circuit in can circuit, wiring harness damage. Estimated repair cost: $6–56.
Symptoms
- Unstable operation of the dashboard
- The appearance of many errors in various systems
- Problems starting the engine
- Disable some vehicle functions
Causes
- Open or short circuit in CAN circuit
- Wiring harness damage
- Malfunction of one of the electronic control units
- Interference in the electrical system
How to Fix
- Check the integrity of the CAN bus wires
- Inspect connectors and connections for corrosion or damage
- Check the operation of all electronic control units
- Eliminate possible sources of interference in the electrical system
Related codes
Error U0007 by Vehicle Brand
FAQ
What does the U0007 code mean?
U0007 is an OBD-II diagnostic trouble code that indicates: High Speed CAN Communication Bus (-) Low
What causes a U0007 error code?
The most common causes of U0007 include: Open or short circuit in CAN circuit; Wiring harness damage; Malfunction of one of the electronic control units; Interference in the electrical system.
How do I fix a U0007 diagnostic trouble code?
To fix U0007: Check the integrity of the CAN bus wires. Inspect connectors and connections for corrosion or damage. Check the operation of all electronic control units. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0007?
Do not drive — repair immediately
How much does it cost to fix U0007?
The estimated repair cost for U0007 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat