OBD Guide

P0D56

Proximity Detection Circuit A

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$50–167 (est.)

Symptoms

  • Collision warning systems do not work
  • Error message on the dashboard
  • Incorrect operation of automatic braking
  • False alarms of security systems

Causes

  • Proximity sensor malfunction
  • Wiring harness damage
  • Poor contact in connectors
  • Problems with the control unit
  • Short circuit in the circuit

How to Fix

  1. Check wiring integrity
  2. Diagnose proximity detection sensor
  3. Check connections and connectors
  4. Scan the control unit for errors
  5. Replace the faulty component

Related codes

Error P0D56 by Vehicle Brand