Audi DTC P1402 – EGR Valve Circ Short to B+
DTC P1402 meaning on Audi
The Diagnostic Trouble Code (DTC) P1402 for Audi indicates a fault related to the Exhaust Gas Recirculation (EGR) Valve Circ Short to B+. This means that there is a short circuit to the positive battery voltage in the EGR valve circuit.
Audi DTC P1402 symptoms
Symptoms of DTC P1402 on an Audi may include:
- Check Engine Light (MIL) illuminated
- Engine running rough or misfiring
- Reduced fuel efficiency
- Increased emissions
Audi DTC P1402 causes
Common causes of DTC P1402 on an Audi include:
- Short circuit in the EGR valve wiring
- Faulty EGR valve
- Corrosion or poor connections in the EGR valve circuit
Audi DTC P1402 seriousness
DTC P1402 should not be ignored as it can lead to poor engine performance, increased emissions, and potential damage to other components if left unresolved. It is recommended to address this issue promptly.
How to diagnose DTC P1402 on Audi
To diagnose DTC P1402 on an Audi, you can follow these steps:
- Use an OBD-II scanner to retrieve the fault code
- Inspect the EGR valve wiring for any visible damage or corrosion
- Check the EGR valve for proper operation and continuity
- Test the EGR valve circuit for shorts to B+ using a multimeter
How to fix DTC P1402 on Audi
To fix DTC P1402 on an Audi, you can try the following solutions:
- Repair or replace any damaged wiring in the EGR valve circuit
- Replace the EGR valve if it is faulty
- Clean or replace any corroded connectors in the circuit
How to erase DTC P1402 on Audi
To erase DTC P1402 on an Audi, you can clear the fault code using an OBD-II scanner. After addressing the underlying issue causing the fault code, you can reset the Check Engine Light and clear the code from the vehicle’s memory.
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