OBD Guide
ENFRDEESPT

B1B52

Rear Sounder-Park Aid Circuit Short

B1B52 is an OBD-II diagnostic trouble code meaning: Rear Sounder-Park Aid Circuit Short. Common causes: wiring harness damage, horn malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • No sound signal when parking
  • Incorrect operation of parking sensors
  • Warning light on the dashboard comes on

Causes

  • Wiring harness damage
  • Horn malfunction
  • Problems in the parking system control unit
  • Short circuit in the circuit

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the horn for malfunction
  3. Diagnose the parking system control unit
  4. Replace damaged components

Related codes

B1B51B1B53B1B54

FAQ

What does the B1B52 code mean?

B1B52 is an OBD-II diagnostic trouble code that indicates: Rear Sounder-Park Aid Circuit Short

What causes a B1B52 error code?

The most common causes of B1B52 include: Wiring harness damage; Horn malfunction; Problems in the parking system control unit; Short circuit in the circuit.

How do I fix a B1B52 diagnostic trouble code?

To fix B1B52: Check the integrity of the wiring harness. Check the horn for malfunction. Diagnose the parking system control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1B52?

Limited driving only, diagnose soon

How much does it cost to fix B1B52?

The estimated repair cost for B1B52 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat