U0088

Vehicle Communication Bus F - Shorted to Bus F +

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$11–56 (est.)

Symptoms

Check Engine Light Is On
Lost communication with one or more modules
Security system malfunctions
Unstable engine operation
Errors in other vehicle systems

Causes

Short circuit in bus wires F
Broken wiring
Malfunction of one of the electronic modules
Damage to connectors or corrosion of contacts
Problems with the control unit

How to Fix

Conduct CAN bus diagnostics using an oscilloscope
Check the integrity of wires and connectors
Replace damaged wiring sections
Check and, if necessary, replace faulty modules
Repair only from an authorized dealer

Related codes

U0087 U0089 U0100