U0092

Vehicle Communication Bus H

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$6–56 (est.)

Symptoms

The Check Engine light comes on
Incorrect operation of various vehicle systems
Lost connection with diagnostic equipment
Dashboard malfunctions
Problems starting the engine

Causes

Open or short circuit in bus H circuit
Corrosion of contacts or connectors
Fault in one of the modules connected to the bus
Problems with module power supply
Software failure in one of the control units

How to Fix

Check the integrity of the wiring and contacts of bus H
Inspect connectors for corrosion or damage
Check power supply and grounding of connected modules
Disable the modules one by one to identify the faulty one.
Update control unit software

Related codes

U0091 U0093 U0100