P1405
DPF EGR Sensor Circuit High Voltage Detected
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
- Rough engine idling
- Problems with the exhaust gas recirculation system
Causes
- EGR DPF sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Problems with the engine control unit
- Corroded or damaged wiring
How to Fix
- Check the continuity of the EGR DPF sensor circuit
- Inspect the connectors and contacts of the sensor for oxidation
- Check the functionality of the EGR DPF sensor
- Replace sensor if necessary
- Reset the error code and check if it returns