OBD Guide

P24E5

NH3 Sensor Circuit Intermittent/Erratic

P24E5 is an OBD-II diagnostic trouble code meaning: NH3 Sensor Circuit Intermittent/Erratic. Common causes: open or short circuit in the nh3 sensor circuit, poor contact in sensor connectors. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Engine performance deterioration
  • Increased fuel consumption
  • Power dips
  • Unstable idling

Causes

  • Open or short circuit in the NH3 sensor circuit
  • Poor contact in sensor connectors
  • NH3 sensor malfunction
  • Problems with the SCR control module
  • Corroded or damaged wires

How to Fix

  1. Check the integrity of wiring and connectors
  2. Clean sensor contacts and connectors
  3. Check the resistance and voltage in the sensor circuit
  4. Replace NH3 sensor if necessary
  5. Check and reflash the SCR control module if necessary

Related codes

Error P24E5 by Vehicle Brand

FAQ

What does the P24E5 code mean?

P24E5 is an OBD-II diagnostic trouble code that indicates: NH3 Sensor Circuit Intermittent/Erratic

What causes a P24E5 error code?

The most common causes of P24E5 include: Open or short circuit in the NH3 sensor circuit; Poor contact in sensor connectors; NH3 sensor malfunction; Problems with the SCR control module.

How do I fix a P24E5 diagnostic trouble code?

To fix P24E5: Check the integrity of wiring and connectors. Clean sensor contacts and connectors. Check the resistance and voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24E5?

Yes, but get it checked soon

How much does it cost to fix P24E5?

The estimated repair cost for P24E5 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat