The P2047 trouble code indicates that the reductant injection valve circuit for bank 1, unit 1 is experiencing an open circuit.
P2047 Reductant Injection Valve Circuit/Open Bank 1 Unit 1
Code symptoms P2047.
1. Malfunction indicator lamp (MIL) or Check Engine Light (CEL) illuminated.
2. Changes in exhaust emissions.
3. Reduction in fuel efficiency.
4. Decrease in engine performance.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P2047.
1. Faulty reductant injection valve.
2. Open or short circuit in the wiring harness connected to the reductant injection valve.
3. Corrosion or damage to the connectors in the reductant injection valve circuit.
4. Faulty powertrain control module (PCM).
Code Solutions P2047.
1. Inspect the reductant injection valve and replace if faulty.
2. Check the wiring harness for any open or short circuits. Repair or replace damaged sections of the wiring harness.
3. Inspect the connectors in the reductant injection valve circuit for corrosion or damage. Clean or replace connectors as necessary.
4. Perform a PCM reset or reflash to clear the code. If the issue persists, consider replacing the PCM.