OBD-II code · Network
U0697 Lost Communication With Particulate Filter Pressure Sensor D
The vehicle bus reports loss of communication with smart DPF differential pressure sensor D. The ECM cannot read soot loading via this channel and may switch to a model-based estimate.
Is it safe to drive with U0697?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyBus wiring open or shorted
- PossibleModule without power or ground
- PossibleModule failed
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Dpf Pressure Sensor D, Vehicle Bus Wiring
Related codes
- U0602Lost Communication With Particulate Filter Pressure Sensor B
- U0696Lost Communication With Particulate Filter Pressure Sensor C
- U0694Lost Communication With Hybrid/EV Battery Pack Coolant Pump A
- U0695Lost Communication With Hybrid/EV Battery Pack Coolant Pump B
- U0698Lost Communication With Coolant Pump E
- U0699Lost Communication With Coolant Pump F
- U069ALost Communication With Exhaust Gas Temperature Sensor Bank 1 Sensor 3
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.