OBD-II code · Network
U0681 Lost Communication With Throttle/Pedal Position Sensor/Switch D
The vehicle bus reports loss of communication with smart throttle/pedal position sensor D. The ECM loses one of the redundant pedal channels and reverts to a fail-safe pedal map.
Is it safe to drive with U0681?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
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
- Throttle Pedal Sensor D, Vehicle Bus Wiring
Related codes
- U0606Lost Communication With Throttle/Pedal Position Sensor/Switch A
- U0607Lost Communication With Throttle/Pedal Position Sensor/Switch B
- U0608Lost Communication With Throttle/Pedal Position Sensor/Switch C
- U0682Lost Communication With Throttle/Pedal Position Sensor/Switch E
- U0683Lost Communication With Throttle/Pedal Position Sensor/Switch F
- U067ELost Communication With Exhaust Pressure Control Valve B Sensor/Switch
- U067FLost Communication With Barometric Pressure Sensor A
- U0680Lost Communication With Barometric Pressure Sensor B
- U0684Lost Communication With Catalyst Temperature Bank 1 Sensor 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.