U0067

Vehicle Communication Bus E (+) Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–33 (est.)

Symptoms

Check Engine light comes on
Unstable engine operation
Failure of some electronic systems
Problems with diagnostics via OBD-II

Causes

Broken or damaged CAN bus wires
Short circuit in CAN circuit (+)
Malfunction of one of the ECUs
Poor contact in connectors
Problems with ECU power supply

How to Fix

Check the integrity of the CAN bus wires
Check connections and connectors
Measure the voltage on the CAN bus (+)
Check operation of associated ECUs
Replace damaged wires or connectors

Related codes

U0068 U0066 U0073