WOMS
P code powertrain High severity

P2060 Reductant Injection Air Pump Control Circuit Low

The OBD2 code P2060 indicates a low voltage or malfunction in the reductant injection air pump control circuit, which is part of the system that helps reduce emissions in diesel engines by injecting a urea solution

Definition

The OBD2 code P2060 indicates a low voltage or malfunction in the reductant injection air pump control circuit, which is part of the system that helps reduce emissions in diesel engines by injecting a urea solution

Common causes

  • Faulty reductant injection air pump
  • Damaged wiring or connectors in the control circuit
  • Failed control module
  • Short circuit in the circuit
  • Open circuit in the circuit
  • Corroded connectors
  • Faulty relay or fuse related to the air pump
  • Low voltage supply to the pump

Common misdiagnoses

  • Faulty reductant injection air pump
  • Wiring issues or short circuits in the control circuit
  • Defective engine control module (ECM)
  • Clogged or damaged reductant lines
  • Faulty sensors related to the reductant system
  • Issues with the exhaust aftertreatment system
  • Low reductant fluid level or quality
  • Vacuum leaks in the intake system

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are multiple issues

  2. 2. Inspect the Reductant Injection Air Pump

    Visual Inspection: Check the air pump for any visible damage, corrosion, or loose connections

  3. 3. Functionality Test

    If possible, test the pump to ensure it operates correctly. You may need to apply power directly to the pump to see if it runs

  4. 4. Examine Wiring and Connectors

    Wiring Inspection: Look for damaged, frayed, or corroded wires in the reductant injection air pump circuit

  5. 5. Connector Check

    Ensure that all connectors are secure and free of corrosion. Clean any corroded connectors and ensure a tight fit

  6. 6. Test the Control Circuit

    Voltage and Ground Testing: Use a multimeter to check for proper voltage and ground at the pump connector. Compare the readings to the specifications in the vehicle’s service manual

  7. 7. Continuity Test

    Check for continuity in the wiring between the engine control module (ECM) and the air pump. Look for any breaks in the circuit

  8. 8. Inspect the ECM

    If the wiring and pump are functioning correctly, the issue may lie with the engine control module. Check for any software updates or known issues with the ECM related to the reductant system

  9. 9. Check for Blockages

    Inspect the air intake and exhaust paths of the reductant injection system for any blockages that could affect performance

  10. 10. Review the DEF System

    Ensure that the diesel exhaust fluid (DEF) is at the correct level and is not contaminated. Low or poor-quality DEF can cause issues with the reductant system

  11. 11. Clear Codes and Test Drive

    After performing repairs or adjustments, clear the trouble codes and take the vehicle for a test drive to see if the code returns

  12. 12. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the P2060 code for your specific vehicle make and model. Manufacturers may have issued guidance on common issues and fixes

  13. 13. Seek Professional Help

    If the issue persists after performing these steps, it may be best to consult a professional mechanic or dealership for further diagnosis. By following these troubleshooting steps, you should be able to identify and resolve the issue associated with the P2060 code