DPF EGR Sensor Circuit High Voltage Detected
Findings, check these first
- Failed DPFE sensor stuck high
- Shorted sensor signal wire
- Blocked downstream hose raising differential
- Poor sensor ground
- Reference voltage fault
Standard procedure
- Check DPFE hoses for blockage
- Test sensor voltage KOEO
- Inspect wiring for shorts
- Verify the ground circuit
- Replace the sensor after hose and circuit checks
Code lookup
Type a code above, or start from a symptom or a common code.
Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.
Sources and review
Review: checked against the recorded source material.
- OBDII.pro: P1405 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1405: DPFE Sensor Upstream Hose Off Or Plugged
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
- P1405 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for P1405: DPF EGR Sensor Circuit High Voltage Detected
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.
Last updated 2026-09-06.
Report a correction for P1405. Include your vehicle, the issue and a source if you have one.