P2037

Symptoms

• Check Engine Light Is On
• Increased NOx emissions
• Reduced engine power
• Activating emergency engine operation
• SCR system error message on dashboard

Causes

• Malfunction of the reagent injection air pressure sensor
• Open or short circuit in the sensor circuit
• Poor contact in sensor or ECU connectors
• Damaged or clogged injection system pipes
• SCR system control module malfunction

How to Fix

1. Check the continuity of the pressure sensor circuit
2. Inspect the sensor connectors and contacts for corrosion or damage.
3. Check the functionality of the pressure sensor (resistance, signal)
4. Check injection system lines for blockages or damage.
5. If necessary, replace the reagent injection air pressure sensor

Related codes

Error P2037 by Vehicle Brand