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P2101

Throttle actuator control (TAC) motor - range/performance problem

P2101 is described as “Throttle actuator control (TAC) motor - range/performance problem” in the Generic OBD2 reference. Other reference families are shown below; select the scope relevant to your vehicle.

Manufacturer reference family

BMW: P2101

en

Throttle Actuator Control Motor Circuit Range/Performance

Reference namespace
bmw
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: BMW.

10 profiles assigned this reference family
Manufacturer reference family

Continental Synerject Easy U: P2101

en

Throttle Actuator "A" Control Motor Circuit Range/Performance 9

Reference namespace
continental-synerject-easy-u
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Manufacturer reference family

Dodge / Fiat: P2101

en

throttle, HW Malfunction

Reference namespace
fiat
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Fiat, Dodge.

27 profiles assigned this reference family

3 more related profiles are listed in the vehicle directory.

Manufacturer reference family

GM: P2101

en

Inlet Air Flow Valve Control Circuit Low Voltage; Inlet Air Flow Valve Control Circuit Internal Malfunction; Inlet Air Flow Valve Control Circuit Malfunction; Inlet Air Flow Valve Control Circuit Malfunction; Intake Air Flow Valve Control Circuit High Temperature; Inlet Air Flow Valve Control Circuit Malfunction

Reference namespace
gm
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Manufacturer reference family

Euler / Great Wall / Harvard / Haval: P2101

en

The Difference (Absolute Value) Between Actual and Calculated Throttle Opening Exceeds 5%, and This Condition Lasts More Than 240ms

ru

Разница (абсолютное значение) между фактическим и расчетным значением открытия дроссельной заслонки превышает 5%, и это состояние длится более 240мс

Reference namespace
haval
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Great Wall, Euler, Haval, Harvard.

34 profiles assigned this reference family

10 more related profiles are listed in the vehicle directory.

Manufacturer reference family

Acura / Honda: P2101

en

Throttle Actuator System Malfunction

Reference namespace
honda
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Honda, Acura.

12 profiles assigned this reference family
Manufacturer reference family

Genesis / Hyundai / Kia: P2101

ru

Система управления дроссельной заслонкой, цепь электродвигателя, диапазон/характеристики

Reference namespace
hyundai-kia
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Kia, Genesis, Hyundai.

401 profiles assigned this reference family

377 more related profiles are listed in the vehicle directory.

Manufacturer reference family

Mercedes-Benz: P2101

en

Throttle Actuator Control Motor Circuit Range/Performance

Reference namespace
mercedes-benz
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Mercedes-Benz.

13 profiles assigned this reference family
Manufacturer reference family

Dodge / Mitsubishi: P2101

en

ETV motor magneto

Reference namespace
mitsubishi
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Mitsubishi, Dodge.

31 profiles assigned this reference family

7 more related profiles are listed in the vehicle directory.

Generic OBD2

Generic OBD2: P2101

en

Throttle actuator control (TAC) motor - range/performance problem

Reference namespace
obd2
Source revision
legacy-2.2.20

Generic OBD2 definition; confirm the protocol and vehicle-specific service information.

Manufacturer reference family

Belgee / Geely / Proton: P2101

en

Throttle Body Actuator System

Reference namespace
proton
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Belgee, Geely, Proton.

5 profiles assigned this reference family
Manufacturer reference family

Dacia / Renault: P2101

ru

Неиправность системы управления дроссельной заслонкой C-030; Цепь системы управления дроссельной заслонкой вне диапазона/рабочих характеристик C-026

Reference namespace
renault
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Dacia, Renault.

170 profiles assigned this reference family

146 more related profiles are listed in the vehicle directory.

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording
Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-10-09-v81. Sources and scope