U010CLost Communication With Turbocharger/Supercharger Control Module A
- Generic OBD-II code · Network
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- U010C reports that turbocharger/supercharger control module A, in practice the electronic actuator that positions variable-geometry vanes or a wastegate, has gone silent. GM's 2017 small-diesel table (2.8 L Duramax and Cruze diesel) watches its frames $099 and $499 on a dedicated sensor bus and logs U010C once 10 s pass without them, rated Type B with two trips, provided that bus is not off (U0076). On FCA's 2015 Ram 2500/3500 with the 6.7 L Cummins, bulletin 09-005-22 reports MIL with U010C next to P003A, P00AF, P0046 or P0234 and replaces the turbo actuator under a warranty extension. Without the actuator boost cannot be steered, so the engine limits torque. U040D is the invalid-data sibling, U010D the second module.
- What you may notice
- MIL on
- Low power, reduced boost
- Other boost codes such as P003A or P0234 stored
- Likely causes
- LikelyElectronic turbo actuator faulty (heat, internal electronics)
- PossibleActuator supply, fuse or ground faulty
- PossibleHeat-damaged connector or bus lines at the turbo
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €150 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.