U0007

High Speed CAN Communication Bus (-) Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$6–56 (est.)

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

U0001 U0002 U0010