OBD Guide

B0122

Pedestrian Alert Speaker A

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • No sound warning for pedestrians
  • Illumination of the malfunction warning lamp on the instrument panel
  • Error message on the on-board computer display

Causes

  • Open or short circuit in loudspeaker circuit
  • Malfunction of the loudspeaker itself
  • Wiring harness damage
  • Problems with the warning system control unit

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Check speaker impedance
  3. Connect an OBD-II scanner to diagnose the control unit
  4. Replace the loudspeaker if necessary
  5. Clear error memory and check if code is returned

Related codes

Error B0122 by Vehicle Brand