OBD Guide

P1324

Knock Sensor Power Source Circuit Low Voltage

P1324 is an OBD-II diagnostic trouble code meaning: Knock Sensor Power Source Circuit Low Voltage. Common causes: open or short circuit in the knock sensor power supply circuit, poor contact in sensor connectors. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Poor engine performance
  • Power Loss
  • Increased fuel consumption
  • Sometimes the engine may stall
  • The Check Engine light comes on

Causes

  • Open or short circuit in the knock sensor power supply circuit
  • Poor contact in sensor connectors
  • Malfunction of the knock sensor itself
  • Problems with the engine control unit
  • Corroded or damaged wires

How to Fix

  1. Check the integrity of the wiring and connectors of the knock sensor
  2. Measure the voltage in the sensor power circuit
  3. Check the resistance of the knock sensor
  4. Replace knock sensor if necessary
  5. Check and, if necessary, reflash the engine ECU

Related codes

Error P1324 by Vehicle Brand

FAQ

What does the P1324 code mean?

P1324 is an OBD-II diagnostic trouble code that indicates: Knock Sensor Power Source Circuit Low Voltage

What causes a P1324 error code?

The most common causes of P1324 include: Open or short circuit in the knock sensor power supply circuit; Poor contact in sensor connectors; Malfunction of the knock sensor itself; Problems with the engine control unit.

How do I fix a P1324 diagnostic trouble code?

To fix P1324: Check the integrity of the wiring and connectors of the knock sensor. Measure the voltage in the sensor power circuit. Check the resistance of the knock sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1324?

Yes, but get it checked soon

How much does it cost to fix P1324?

The estimated repair cost for P1324 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat