U0608Lost Communication With Throttle/Pedal Position Sensor/Switch C
- Generic OBD-II code · Network
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Sensor C usually belongs to a second throttle body, as on engines with one throttle per bank or two throttles in parallel. Ford's 2020 to 2024 gasoline summaries spell this out: on dual-throttle applications the SENT sensor of throttle body B reports as sensor C, and U0608 sets with MIL and wrench lamp when wiring or the SENT device has been faulty for more than 4 s. P0225 and P0229 cover a self-reported fault or a brief dropout of the same sensor; oddly, Ford labels the matching shorted-line codes as sensor B. GM's dual-throttle calibration of 2023 and 2024 assigns U0608 to sensor 1 of the bank 2 throttle, 0.13 s, one trip, while that unit's second track reports as U0688. Losing one throttle forces the controller to limit both banks.
- What you may notice
- Check engine light and, on Ford, wrench lamp
- Reduced power, uneven running between banks
- Likely causes
- LikelyWiring fault on the SENT harness branch to the second throttle body
- PossiblePosition sensor electronics of the second throttle body failed
- PossibleCorroded or loose connector at throttle body B
- 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 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.