U010C Lost communication with the turbocharger/supercharger control module

Lost communication with turbocharger control module (turbo actuator)

Severity not verified — if the car runs badly, have it inspected

Complaints describe sudden power loss at road speed with this code on Ram diesels, but severity for other vehicles is not sourced.

It gets more serious if:

  • Inspect soon: Inspect soon if U010C appears with sudden loss of power, limp mode, smoke or oil under the engine, or an engine brake that stays on.

Source: how we rate severity

U010C in short

U010C means the engine computer lost communication with the turbocharger control module. On 2013-2015 Ram heavy-duty trucks with the Cummins 6.7L diesel, FCA covers the turbo actuator for this code under a warranty extension. Owners report sudden power loss at road speed, so have it checked soon.

On variable-geometry turbo engines, an electronic actuator sets the turbo vanes and talks to the engine computer. If those messages stop, the computer stores U010C and usually reduces power.

FCA bulletin 09-005-22 (X99) covers 2015 Ram 2500 and 3500 Cummins 6.7L trucks: it lists U010C as lost communication with the turbocharger/supercharger control module, together with P003A, P00AF, P0046 and P0234, and prescribes replacing the turbo actuator. An earlier bulletin family, 09-001-22, covers 2013-2015 Ram 4500 and 5500.

Owners of 2012-2016 Ram trucks report sudden power loss, an engine brake that stays on, and in one case the code returning after both the actuator and the turbo were replaced. Those are owner accounts; coverage and eligibility depend on the VIN.

Most likely causes

  1. Turbocharger actuator electronics failing

    Supported by vehicle data
    Why it ranks here
    FCA 09-005-22 names U010C and prescribes replacing the turbo actuator on 2015 Ram 2500/3500 Cummins 6.7L trucks, and several owners describe it at operating temperature; only the NHTSA summary was read and the bulletin is unverified.
    What would change this
    Rises on a Ram Cummins 6.7L with P003A also stored and power loss when hot. Falls on other engines, or if the actuator was already replaced and the code remains.

  2. Turbo, wiring or engine computer issue beyond the actuator

    Possible — needs testing
    Why it ranks here
    One owner kept the code after replacing the actuator and the turbo; a single report.
    What would change this
    Rises if a new actuator does not clear the code. Falls if the code clears after the actuator update.

What to test first

Start at step 1. Each result tells you what it means and where to go next.

  1. Read all stored engine codes and note whether P003A, P00AF, P0046 or P0234 are stored with U010C, and whether the code returns after clearing.

    Low riskTool: OBD-II scan tool

Symptoms

  • Sudden power loss or limp mode at road speed Gets more serious: stop and have it checked.
  • Check engine light
  • Engine brake staying on after it is turned off Gets more serious: stop and have it checked.

How to fix

  1. Ask a dealer whether warranty extension 09-005-22 or a related bulletin applies to your VIN before paying for turbo work.

Parts and cost context

  • Engine control module (ECM / PCM):The bulletin points at the turbo actuator; the engine computer is a later suspect only if the code returns. Labor varies, get a quote.

Labor varies by vehicle and shop; get a quote before you approve a repair.

Compare used part prices on PartPriceGuide

On your vehicle

Ram

  • 2015–2016 · 2500

    Supported by vehicle data

    FCA 09-005-22 covers 2015 Ram 2500 Cummins 6.7L with U010C; owners of 2015 and 2016 trucks report power loss with the code. Whether it is still current is not verified.

  • 2012–2015 · 3500

    Supported by vehicle data

    FCA 09-005-22 covers 2015 Ram 3500; a 2012 Dodge Ram 3500 owner reported U010C with power loss and the code returning after parts were replaced.

  • 0900522Status unverified

    Cummins 6.7L turbocharger actuator warranty extension (X99) with U010C

    20152500, 3500 · 6.7L Cummins diesel · NHTSA 10229147

    Replace the turbocharger actuator when the MIL is on and DTCs such as U010C, P003A, P00AF, P0046 or P0234 are set. A related X93 bulletin covers 2013-2015 Ram 4500 and 5500.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

No curated relationships for U010C yet.

All Module network (CAN bus) communication codes

U010C questions

Is U010C covered by a warranty extension?

FCA bulletin 09-005-22 covers the turbo actuator on 2015 Ram 2500 and 3500 Cummins 6.7L trucks when U010C is set. Ask a dealer to check your VIN.

Sources and review

  1. FCA 09-005-22 (X99): Cummins 6.7L turbocharger actuator warranty extension — FCA US (via NHTSA flat file)
  2. NHTSA complaint ODI 11734962: 2012 Dodge Ram 3500 — NHTSA (owner complaint)
  3. NHTSA complaint ODI 11452837: 2015 Ram 2500 — NHTSA (owner complaint)
  4. NHTSA complaint ODI 11744191: 2016 Ram 5500 — NHTSA (owner complaint)
  5. NHTSA complaint ODI 11505949: 2016 Ram 2500 — NHTSA (owner complaint)
Last reviewed
Written by
Saurabh K.
Editorial review
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Technician review
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