U0262

Lost Communication With Audio Amplifier B

Severity

✅ Low

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

No sound from the audio system
Incorrect operation of the audio amplifier
Error message on display
Intermittent audio system operation
Lack of communication with the amplifier during diagnostics

Causes

Open or short circuit in the CAN bus wiring
Poor contact in audio amplifier connectors
Audio amplifier unit B malfunction
Amplifier power problems
Contact corrosion in electrical connections

How to Fix

Check the integrity of the CAN bus wiring to the amplifier
Inspect and clean the contacts of the amplifier connectors
Check the supply voltage at the amplifier terminals
Test the operation of the audio amplifier
Replace the faulty amplifier unit if necessary

Related codes

U0261 U0263 U0264