OBD Guide

P13BE

Knock Sensor 2 Electrical Signal Input 'A' Short Circuit To Ground

P13BE is an OBD-II diagnostic trouble code meaning: Knock Sensor 2 Electrical Signal Input 'A' Short Circuit To Ground. Common causes: damage to knock sensor wiring or connector, short circuit in the sensor circuit to ground. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Detonation knocks during acceleration
  • The engine goes into emergency mode

Causes

  • Damage to knock sensor wiring or connector
  • Short circuit in the sensor circuit to ground
  • Malfunction of the knock sensor itself
  • Engine grounding problems
  • ECU malfunction (rare)

How to Fix

  1. Visual inspection of the wiring and connector of the knock sensor
  2. Checking the resistance and continuity of the sensor circuit
  3. Checking for a short circuit to ground
  4. Replacing the knock sensor if necessary
  5. Repair or replace damaged wiring

Related codes

FAQ

What does the P13BE code mean?

P13BE is an OBD-II diagnostic trouble code that indicates: Knock Sensor 2 Electrical Signal Input 'A' Short Circuit To Ground

What causes a P13BE error code?

The most common causes of P13BE include: Damage to knock sensor wiring or connector; Short circuit in the sensor circuit to ground; Malfunction of the knock sensor itself; Engine grounding problems.

How do I fix a P13BE diagnostic trouble code?

To fix P13BE: Visual inspection of the wiring and connector of the knock sensor. Checking the resistance and continuity of the sensor circuit. Checking for a short circuit to ground. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P13BE?

Limited driving only, diagnose soon

How much does it cost to fix P13BE?

The estimated repair cost for P13BE is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat