U0052

Vehicle Communication Bus C (-) Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–33 (est.)

Symptoms

Unstable operation of electronic systems
Check Engine light comes on
Problems starting the engine
Lost connection with some sensors

Causes

Broken or damaged CAN C bus wires
Short circuit in CAN C bus circuit
Malfunction of one of the ECUs connected to the CAN C bus
Poor contact in CAN C bus connectors
Problems with power supply or grounding of the ECU

How to Fix

Check the integrity of the CAN C bus wires
Check connectors and contacts for oxidation or damage
Check the voltage and resistance in the CAN C bus circuit
Diagnose ECUs connected to the CAN C bus
Replace damaged wires or connectors

Related codes

U0051 U0053 U0054