U0697Lost Communication With Particulate Filter Pressure Sensor D
- Generic OBD-II code · Network
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- Sensor D is the fourth filter pressure slot and appears only in Ford's 2024 gasoline OBD summary, which watches particulate filters on both banks (P226D and P226E for a missing substrate). There U0697 sits with P2CEA in the circuit and lost-communication check for SENT-type pressure sensors A to D: it runs all the time and needs 5 s to log a fault. Ford keeps a separate functional check (P2CEB) and, for analog parts, low and high limits of 0.3 and 4.73 V. GM's 2025 diesel tables go no further than C. A missing D reading leaves the filter it serves without a measured pressure drop, so soot load and the missing-substrate test fall back on models or wait. U0696 refers to sensor C, U0601 and U0602 to A and B.
- What you may notice
- Check engine light
- Particulate filter monitor for one bank incomplete
- Likely causes
- LikelyWiring to filter pressure sensor D damaged
- PossibleSensor D stopped transmitting
- PossibleConnector corroded or unlatched
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €60 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.