P2101: Throttle Actuator "A" Control Motor Circuit Range/Performance
11 vehicles · 7 makes · $100-$3,500 repair
Most Reported On
P2101 is an OBD-II diagnostic trouble code meaning “Throttle Actuator "A" Control Motor Circuit Range/Performance.” This powertrain code means the engine computer commanded the electronic throttle actuator motor to a certain position but the motor did not respond within the expected range. Modern engines use a drive-by-wire throttle, where a motor opens and closes the throttle plate based on signals from the computer rather than a cable. When the actual throttle position disagrees with the commanded position, the computer sets this code, often forcing the vehicle into a reduced-power 'limp' mode to protect the engine. This can cause poor acceleration or stalling and should be addressed promptly. This code is most commonly reported on 2008-2013 BMW M3, 2007-2015 Jaguar XK, and 2014-2021 Ford Transit Connect, plus 8 other vehicles, with repair costs ranging from $100 to $3,500.
Common Causes
Typical Repair Cost
Based on 13 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
This is a powertrain code, so a basic OBD-II reader can read it. These read P2101.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple code reader for engine (P) codes on many compatible OBD-II vehicles. It does not support every vehicle or hybrid/EV application, and it does NOT read body, chassis or network codes; confirm exact-vehicle compatibility before buying.
- Read & clear engine (P) codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth scanner with a companion app that reads beyond the engine module — ABS, SRS and transmission — plus manufacturer-specific codes on many vehicles.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X V3.0 Elite OBD-II Scanner
by LAUNCH
Handheld scanner covering the four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level tablet with all-system coverage and bi-directional control, so you can command a module rather than only read it.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
What you can do yourself, and what needs a shop
Reading the code, clearing it, and watching whether it returns is a driveway job with the right scanner. These steps are not:
- Module programming or software updates — needs the manufacturer software or a J2534 pass-through with a paid subscription.
- Replacing a control module — most are VIN-programmed and immobilizer-registered, so a new one does nothing until it is coded to your car.
- Airbag/SRS component work — a stored fault can deploy a live device.
If the vehicle is still under warranty, check for an open recall or technical service bulletin before buying anything — the repair may already be covered.
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Vehicles Affected (11)
Reduced Engine Power / Limp Mode from Throttle Body (P2135) Failure
Reduced Engine Power / Service StabiliTrak from Throttle Body Failure
Reduced Engine Power / Throttle Body (TAC) Failure
'Reduced Engine Power' Limp Mode - Electronic Throttle (TAC) System
FAQ
What does P2101 mean?
P2101 stands for "Throttle Actuator "A" Control Motor Circuit Range/Performance." This powertrain code means the engine computer commanded the electronic throttle actuator motor to a certain position but the motor did not respond within the expected range. Modern engines use a drive-by-wire throttle, where a motor opens and closes the throttle plate based on signals from the computer rather than a cable. When the actual throttle position disagrees with the commanded position, the computer sets this code, often forcing the vehicle into a reduced-power 'limp' mode to protect the engine. This can cause poor acceleration or stalling and should be addressed promptly.
What are the most common causes of P2101?
The most common causes of P2101 are: Faulty throttle actuator control motor (throttle body), Dirty or carbon-fouled throttle plate causing binding, Wiring or connector problems in the throttle actuator circuit, Failed throttle position sensor inside the throttle body, Poor electrical connection or corroded terminals, Faulty engine control module (less common). The specific cause varies by vehicle.
How much does it cost to fix P2101?
Repair costs for P2101 range from $100 to $3,500, depending on the vehicle and root cause.
Which vehicles are affected by P2101?
Au7o has documented P2101 across 11 vehicle models from 7 manufacturers: BMW, Buick, Chevrolet, Ford, Jaguar, Nissan, Pontiac.
Sources (12)
- NHTSANHTSA Manufacturer Communications Data Corpus
- RecallNHTSA Campaign 22V413 - Transit Connect Shifter-Cable Bushing
- RecallNHTSA Campaign 14V708 - Transit Fuel-Filter Bracket
- RecallNHTSA Recall 70V143 - Incorrect Throttle-Rod Clip Can Hold the Throttle Open
- RecallNHTSA Recall 10V480 - Front Seat-Belt Webbing May Be Improperly Anchored
- TSBGM Preliminary Information PIP4578B - Throttle-Body Carbon and Idle Learn
- articleNissan Recalls 318,781 Rogue Vehicles Over Throttle Body Issue
- articleNissan Recalls Rogue Over Potential Loss of Power (KBB)
- articleNissan recalls 642K Rogue SUVs over engine issues (WardsAuto)
- articleP2111 on 2008-2015 Nissan Rogue: Throttle Actuator Control Stuck Open Causes and Fixes (Go-Parts)
- articleNissan Rogue Stalling - Causes & Diagnosis (Drivetrain Resource)
- TSBBMW SIB 01 03 16 - S65 Idle Control Device Limited Warranty Extension
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.