P24E3

Symptoms

• Check Engine light comes on
• Reduced efficiency of the SCR system
• Increased NOx emissions
• Possible problems starting the engine
• Unstable engine operation

Causes

• NH3 sensor malfunction
• Open or short circuit in NH3 sensor wiring
• Poor contact in NH3 sensor connectors
• Engine control unit (ECU) malfunction
• Problems with the SCR system

How to Fix

1. Check the NH3 sensor wiring and connectors for damage or corrosion.
2. Measure the voltage and resistance in the NH3 sensor circuit.
3. Check NH3 sensor for compliance with specifications.
4. Replace the NH3 sensor if it is faulty.
5. Check and, if necessary, repair the SCR system.

Related codes

Error P24E3 by Vehicle Brand