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P2119 Throttle Actuator Control Throttle Body Range/Performance
The P2119 Throttle Actuator Control Throttle Body Range/Performance diagnostic trouble code indicates that the Engine Control Module (ECM/PCM) has detected a problem with the electronic throttle body or throttle actuator system, specifically that the throttle plate is not operating within its expected range or is not responding as expected.
In simple terms, the vehicle's computer is commanding the electronic throttle body to move to a particular position, but the actual throttle position does not match the expected position.
Modern vehicles use Electronic Throttle Control (ETC) instead of a traditional accelerator cable. The accelerator pedal sends position information to the ECM, and the ECM controls an electric motor inside the throttle body.
The ECM continuously monitors:
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Accelerator pedal position
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Commanded throttle position
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Actual throttle position
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Throttle position sensor signals
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Throttle actuator operation
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Electrical supply
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Sensor plausibility
If the throttle plate cannot reach the expected position, becomes restricted, moves incorrectly, or the throttle-position feedback does not correspond to the commanded position, the ECM may store P2119.
Depending on the vehicle, the ECM may also activate reduced engine power or fail-safe mode.
Common symptoms include:
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Check Engine Light
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Reduced engine power
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Poor acceleration
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Throttle hesitation
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Limited RPM
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Limp mode
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Rough idle
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Engine stalling
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Surging
-
Poor throttle response
-
Cruise-control deactivation
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Electronic throttle warning
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Reduced-power warning message
P2119 is not automatically proof that the throttle body must be replaced. A dirty or mechanically restricted throttle plate, wiring problem, electrical fault, incorrect adaptation, or battery-voltage problem can also cause the code.
What Does P2119 Mean?
P2119 means the ECM/PCM has detected that the electronic throttle actuator/throttle body is outside its expected operating range or performance characteristics.
The important part of the code is:
Throttle Actuator Control Throttle Body Range/Performance
The ECM expects the throttle plate to move through a specific operating range and to respond correctly to commands.
A problem can occur when:
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The throttle plate cannot reach the commanded position.
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The throttle plate does not move far enough.
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The throttle plate moves too slowly.
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The throttle plate becomes mechanically stuck.
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The throttle position sensor reports an implausible position.
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The commanded and actual positions do not agree.
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The throttle body has excessive carbon buildup.
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The actuator motor is weak or defective.
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The throttle body has an internal electrical fault.
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Wiring or connectors are damaged.
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A required throttle adaptation has not been completed.
P2119 is therefore different from a simple low-input or high-input sensor code. It is primarily concerned with the range and performance of the throttle actuator/throttle-body system.
What Is the Throttle Actuator Control System?
The throttle actuator control system electronically controls the amount of air entering the engine.
A simplified system operates as follows:
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The driver presses the accelerator pedal.
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Accelerator pedal position sensors detect pedal movement.
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The sensors send position signals to the ECM/PCM.
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The ECM determines the requested engine torque.
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The ECM calculates the required throttle opening.
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The ECM commands the throttle actuator motor.
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The motor moves the throttle plate.
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Throttle position sensors report the actual position.
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The ECM compares commanded and actual throttle position.
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The ECM makes corrections or activates a fail-safe strategy if the system does not respond correctly.
This system allows the ECM to control engine torque electronically.
It is also an important safety system because the ECM can limit throttle operation if it detects a serious fault.
What Does "Range/Performance" Mean?
A range/performance fault does not necessarily mean that the throttle sensor has a completely missing signal.
Instead, the throttle body may produce a signal, but the system is not behaving as expected.
For example:
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The throttle plate may stop before reaching its commanded position.
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The throttle plate may move beyond the expected position.
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The actuator may respond too slowly.
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The throttle plate may stick.
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The position sensor may report an incorrect position.
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The ECM may command a position that the throttle cannot achieve.
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The throttle may fail an internal position plausibility check.
This is why P2119 should not automatically be diagnosed as a failed throttle-position sensor.
Symptoms of P2119
Check Engine Light
The Check Engine Light may illuminate when the ECM detects the throttle range/performance problem.
Reduced Engine Power
The ECM may deliberately limit engine output to prevent uncontrolled or unreliable throttle operation.
Limp Mode
The vehicle may enter a fail-safe operating mode.
Depending on the vehicle, the ECM may restrict:
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Throttle opening
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Engine RPM
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Engine torque
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Accelerator response
Poor Acceleration
The vehicle may accelerate slowly or fail to respond normally to accelerator input.
Throttle Hesitation
There may be a delay between pressing the accelerator and the engine responding.
Rough Idle
If the throttle plate cannot maintain the expected position, idle quality may be affected.
Engine Stalling
A severe throttle-control problem can cause the engine to stall, particularly at idle or during transitions.
Engine Surging
Incorrect throttle control can cause unwanted changes in engine speed.
Limited RPM
Some vehicles may limit engine speed when the ECM detects a serious electronic throttle problem.
Cruise Control Disabled
Cruise control may be disabled because the ECM cannot guarantee normal throttle operation.
Electronic Throttle Warning
Depending on the manufacturer, the dashboard may display an electronic throttle or reduced-power warning.
Common Causes of P2119
Dirty or Carbon-Contaminated Throttle Body
Carbon deposits around the throttle plate are one of the most important mechanical causes to consider.
Carbon can accumulate around:
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Throttle plate edges
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Throttle bore
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Throttle shaft area
Excessive deposits can prevent the throttle plate from reaching its expected position.
However, cleaning the throttle body is not always the correct repair. If the actuator or position sensors are defective, cleaning alone will not solve the problem.
Throttle Plate Binding
The throttle plate may physically stick or move with excessive resistance.
Possible causes include:
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Carbon deposits
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Foreign material
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Damaged throttle plate
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Bent throttle shaft
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Internal mechanical wear
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Contamination
Faulty Throttle Actuator Motor
The throttle body contains an electric motor that moves the throttle plate.
The motor can develop:
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Worn brushes
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Internal electrical failure
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Weak operation
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Excessive resistance
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Intermittent operation
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Internal mechanical damage
Faulty Throttle Position Sensor
Many electronic throttle bodies contain multiple integrated throttle-position sensors.
If the feedback signal is incorrect, the ECM may determine that the throttle is not reaching or maintaining the expected position.
Possible failures include:
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Sensor wear
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Internal electrical failure
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Incorrect signal
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Signal dropout
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Position mismatch
Damaged Throttle Body
The complete throttle-body assembly may have internal damage involving:
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Actuator motor
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Position sensors
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Gears
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Electronics
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Wiring
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Throttle shaft
Damaged Wiring
Inspect the throttle-body harness for:
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Broken wires
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Chafing
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Pinched wires
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Melted insulation
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Heat damage
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Vibration damage
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Previous repair problems
Corroded Connector
Corrosion at the throttle-body connector can cause electrical resistance or intermittent communication between the throttle body and ECM.
Look for:
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Green corrosion
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Oxidation
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Moisture
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Damaged terminals
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Poor terminal contact
Loose or Backed-Out Terminals
A terminal that is not properly seated can cause an intermittent throttle signal or actuator problem.
Poor Power Supply
The electronic throttle actuator requires appropriate electrical power.
Problems can result from:
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Low system voltage
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Poor battery connection
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Damaged power wire
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Poor ground
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Charging-system problems
Poor Ground
A poor engine or throttle-body ground can interfere with actuator and sensor operation.
Possible causes include:
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Corrosion
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Loose ground
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Broken ground wire
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High resistance
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Poor chassis connection
Low Battery Voltage
A weak battery can sometimes contribute to electronic throttle faults, particularly during startup or when system voltage becomes unstable.
Charging System Problem
An alternator or charging-system problem can produce unstable voltage and interfere with electronic throttle operation.
Throttle Body Adaptation Problem
Some vehicles require a throttle adaptation or relearn procedure.
This may be necessary after:
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Throttle-body replacement
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Battery disconnection
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ECM replacement
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Cleaning the throttle body
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Accelerator pedal replacement
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Software updates
The exact procedure is manufacturer-specific.
Accelerator Pedal Sensor Problem
Although P2119 is primarily associated with throttle actuator/throttle-body range and performance, an incorrect accelerator-pedal signal can sometimes cause the ECM to command unexpected throttle positions.
Related accelerator pedal codes should therefore be checked.
Software or Calibration Problem
Incorrect ECM software or calibration can occasionally cause false or repeat throttle-control faults.
Manufacturer technical service bulletins should be checked.
Aftermarket Modifications
Potential causes include:
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Throttle-response controllers
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Modified throttle wiring
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ECU tuning
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Non-standard throttle bodies
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Engine swaps
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Aftermarket electronic throttle components
Faulty ECM/PCM
A control-module fault is possible but generally less common than:
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Throttle-body faults
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Carbon buildup
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Wiring problems
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Connector problems
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Voltage problems
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Adaptation problems
The ECM should normally be considered only after the rest of the system has been properly tested.
Vehicles Commonly Affected by P2119
P2119 can occur on many OBD-II vehicles equipped with electronic throttle-control systems.
Examples may include:
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Ford F-150
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Ford Mustang
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Ford Explorer
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Ford Focus
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Ford Escape
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Ford Fusion
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Chevrolet Silverado
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Chevrolet Tahoe
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Chevrolet Camaro
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Chevrolet Malibu
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GMC Sierra
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GMC Yukon
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Cadillac Escalade
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Dodge Charger
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Dodge Challenger
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Ram 1500
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Jeep Grand Cherokee
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Jeep Wrangler
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Chrysler Pacifica
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Toyota Camry
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Toyota Corolla
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Toyota Tundra
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Toyota Tacoma
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Honda Accord
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Honda Civic
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Honda CR-V
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Nissan Altima
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Nissan Pathfinder
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Nissan Titan
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BMW 3 Series
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BMW 5 Series
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Mercedes-Benz C-Class
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Mercedes-Benz E-Class
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Volkswagen Golf
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Volkswagen Passat
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Audi A4
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Audi A6
This list is not exhaustive.
P2119 can occur on many vehicles when the ECM determines that the electronic throttle body is not operating within its expected range or performance characteristics.
Important: The exact throttle-body design, actuator strategy, sensor configuration, voltage specifications, and diagnostic procedure vary by manufacturer.
How Is P2119 Diagnosed?
A proper diagnosis should determine whether the problem is mechanical, electrical, electronic, or calibration-related.
A good diagnostic process includes the following steps.
Check for Additional Trouble Codes
Perform a complete diagnostic scan.
Look for related codes such as:
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P2100
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P2101
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P2102
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P2103
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P2110
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P2111
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P2112
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P2119
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P2120
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P2121
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P2122
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P2123
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P2124
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P2125–P2129
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P2135
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P2136
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P2137
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P2138
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P2139
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P2140
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Accelerator pedal position codes
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Throttle position sensor codes
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5-volt reference codes
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Battery-voltage codes
Additional codes are extremely useful.
For example, P2119 combined with throttle-position correlation codes may point toward a throttle-body or sensor problem, while P2119 accompanied by voltage or reference-circuit codes may point toward an electrical supply issue.
Check Freeze-Frame Data
Review the conditions under which P2119 was stored.
Useful parameters may include:
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Engine RPM
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Vehicle speed
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Engine load
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Accelerator pedal position
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Commanded throttle position
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Actual throttle position
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Battery voltage
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Engine coolant temperature
This can help establish whether the problem occurred during:
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Startup
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Idle
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Acceleration
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Deceleration
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High engine load
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Low battery voltage
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A specific temperature condition
Monitor Commanded and Actual Throttle Position
Use a capable scan tool to compare:
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Commanded throttle position
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Actual throttle position
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Accelerator pedal position
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Redundant throttle-position signals
Operate the accelerator pedal gradually.
The actual throttle position should generally follow the commanded position within the manufacturer's specified limits.
A significant or repeatable mismatch can help identify a throttle-body range/performance problem.
Inspect the Throttle Body
With the engine off and following the manufacturer's safety procedure, inspect the throttle body for:
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Carbon deposits
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Foreign material
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Damaged throttle plate
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Mechanical binding
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Excessive contamination
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Physical damage
Do not force an electronic throttle plate open if the manufacturer specifically warns against doing so.
Check Throttle Plate Movement
The throttle plate should move correctly and return to the appropriate position.
If it sticks, moves irregularly, or requires excessive force, investigate the throttle body for mechanical problems.
Check the Throttle Actuator
Use scan-tool actuator tests when supported.
A diagnostic scan tool may be able to command the throttle actuator through different positions.
Observe whether:
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The throttle motor responds
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The plate moves smoothly
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Actual position follows commanded position
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The position sensors respond correctly
Check Throttle Position Sensor Signals
Electronic throttle bodies often use redundant position signals.
Monitor the signals and look for:
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Smooth changes
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Dead spots
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Signal dropouts
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Sudden jumps
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Implausible readings
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Correlation errors
The exact voltage ranges are manufacturer-specific.
Check Throttle-Body Power Supply
Measure the throttle-body power supply according to the manufacturer's diagnostic procedure.
Check for:
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Correct voltage
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Voltage drop
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Open circuits
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Blown fuses
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Poor terminals
Check Throttle-Body Ground
Verify the throttle-body and sensor grounds.
Check for:
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High resistance
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Voltage drop
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Corrosion
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Loose ground connections
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Broken wires
Inspect the Throttle-Body Connector
Check for:
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Corrosion
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Bent pins
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Loose terminals
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Backed-out terminals
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Water intrusion
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Damaged connector locks
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Melted insulation
Inspect the Wiring Harness
Trace the harness between the throttle body and ECM.
Look for:
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Chafing
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Heat damage
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Broken wires
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Pinched wires
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Vibration damage
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Previous repairs
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Poor splices
Perform a Wiggle Test
While monitoring throttle-position data, carefully move the relevant wiring harness and connectors.
If the throttle-position signal changes unexpectedly, investigate the wiring and connector.
Check Battery and Charging Voltage
Verify:
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Battery condition
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Battery terminals
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Alternator output
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Charging voltage
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Engine grounds
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Chassis grounds
Unstable system voltage can cause electronic throttle problems.
Check Accelerator Pedal Data
Monitor the accelerator pedal position sensors.
Make sure pedal signals change smoothly and remain within manufacturer specifications.
If pedal-position signals are abnormal, diagnose the pedal system as well.
Perform Throttle Relearn or Adaptation
If the vehicle requires a throttle adaptation procedure, perform it according to the manufacturer.
This may be required after:
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Throttle-body replacement
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Battery disconnection
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Throttle-body cleaning
-
ECM replacement
-
Accelerator-pedal replacement
Do not assume that a generic "pedal dance" or internet relearn procedure applies to every vehicle.
Check Technical Service Bulletins
Search manufacturer service information for known:
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Throttle-body failures
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Carbon-deposit problems
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Wiring defects
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Connector issues
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Software problems
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Adaptation procedures
Use an Oscilloscope When Necessary
An oscilloscope can help identify intermittent or abnormal throttle-position signals.
It can reveal:
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Signal dropouts
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Electrical noise
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Irregular sensor output
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Dead spots
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Intermittent wiring faults
How to Fix P2119
The correct repair depends on the confirmed cause.
Clean the Throttle Body
If carbon buildup is preventing correct throttle-plate movement, clean the throttle body according to the manufacturer's procedure.
Repair Throttle-Plate Binding
If mechanical binding is confirmed, repair or replace the affected throttle-body assembly.
Replace the Throttle Body
If testing confirms an internal actuator motor, position sensor, gear, or electronic failure, replace the throttle-body assembly when required.
Repair Damaged Wiring
Repair or replace wiring affected by:
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Heat
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Chafing
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Vibration
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Pinching
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Corrosion
-
Previous repairs
Repair or Replace Electrical Connectors
Replace damaged terminals or connector housings and restore proper terminal tension.
Repair Power-Supply Problems
Repair open circuits, blown fuses, voltage drops, or damaged power wiring when confirmed.
Repair Ground Problems
Repair loose, corroded, damaged, or high-resistance grounds.
Repair Accelerator Pedal Problems
If testing identifies an accelerator-pedal sensor fault contributing to the problem, repair or replace the applicable component.
Perform Required Throttle Adaptation
Complete the manufacturer-specified throttle-body relearn or adaptation procedure after repairs when required.
Update ECM/PCM Software
If manufacturer service information identifies a software-related P2119 issue, perform the appropriate software update.
Correct Aftermarket Modifications
Remove or correct aftermarket throttle-control devices if they are responsible for the fault.
Replace the ECM/PCM
The ECM/PCM should only be considered after the throttle body, actuator, sensors, wiring, connectors, power supply, grounds, and calibration have been properly tested.
What Happens If P2119 Is Ignored?
P2119 should not be ignored because the throttle actuator controls engine airflow and directly affects accelerator response.
Possible consequences include:
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Reduced engine power
-
Poor acceleration
-
Throttle hesitation
-
Limp mode
-
Limited engine RPM
-
Engine stalling
-
Unpredictable throttle response
-
Cruise-control deactivation
-
Poor fuel economy
-
Additional throttle-control codes
In severe cases, the ECM may significantly restrict throttle operation to maintain safe engine control.
Can You Drive With P2119?
Driving with P2119 depends on how the vehicle is behaving.
A vehicle with a minor or intermittent range/performance problem may continue operating, while another vehicle may immediately enter reduced-power mode.
A short trip may be possible if:
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Accelerator response is predictable.
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The engine runs normally.
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There is no significant power loss.
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The vehicle is not stalling.
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No serious warning messages are displayed.
Avoid continued driving if there is:
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Sudden loss of acceleration
-
Unpredictable throttle response
-
Severe hesitation
-
Repeated stalling
-
Reduced-power mode
-
Very limited engine RPM
-
Multiple electronic throttle warnings
If throttle response becomes unpredictable, the vehicle should be inspected promptly.
Is P2119 a Serious Code?
P2119 is generally considered a moderate to high-severity diagnostic trouble code.
The code affects the electronic throttle actuator and throttle-body system, which is directly involved in controlling engine torque.
The vehicle may remain driveable in some situations, but a significant throttle-body fault can result in:
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Reduced engine power
-
Limited acceleration
-
Fail-safe operation
-
Engine stalling
-
Unpredictable throttle response
If the vehicle suddenly loses throttle response or enters reduced-power mode, the problem should be treated as high priority.
P2119 vs. Related Throttle Actuator Codes
| Code | General Description |
|---|---|
| P2100 | Throttle Actuator Control Motor Circuit/Open |
| P2101 | Throttle Actuator Control Motor Circuit Range/Performance |
| P2102 | Throttle Actuator Control Motor Circuit Low |
| P2103 | Throttle Actuator Control Motor Circuit High |
| P2110 | Throttle Actuator Control System Forced Limited RPM |
| P2111 | Throttle Actuator Control System Stuck Open |
| P2112 | Throttle Actuator Control System Stuck Closed |
| P2119 | Throttle Actuator Control Throttle Body Range/Performance |
| P2120 | Throttle/Pedal Position Sensor/Switch "D" Circuit Malfunction |
| P2121 | Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance |
| P2122 | Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input |
| P2123 | Throttle/Pedal Position Sensor/Switch "D" Circuit High Input |
| P2124 | Throttle/Pedal Position Sensor/Switch "D" Circuit Intermittent |
| P2135 | Throttle Position Sensor A/B Voltage Correlation |
The distinction is important:
-
P2100–P2103 primarily concern the throttle actuator motor circuit.
-
P2110 indicates that the throttle actuator system has been forced into a limited-RPM strategy.
-
P2111 indicates that the throttle actuator control system is stuck open.
-
P2112 indicates that the throttle actuator control system is stuck closed.
-
P2119 indicates a throttle-body range/performance problem.
-
P2120–P2124 concern the D throttle/pedal position circuit.
A vehicle can have more than one of these codes at the same time, and the combination can provide much more diagnostic information than P2119 by itself.
How to Prevent P2119
Recommended practices include:
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Keep the throttle body clean according to manufacturer recommendations.
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Repair intake-system problems promptly.
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Prevent water and contamination from entering electrical connectors.
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Protect throttle-body wiring from heat.
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Prevent wiring from rubbing against metal.
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Maintain battery terminals.
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Maintain engine and chassis grounds.
-
Maintain the charging system.
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Use correct throttle-body components.
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Perform required throttle adaptation procedures.
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Inspect wiring after major engine repairs.
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Avoid poorly installed throttle-control modifications.
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Address Check Engine Light warnings promptly.
Final Thoughts
The P2119 Throttle Actuator Control Throttle Body Range/Performance diagnostic trouble code indicates that the ECM/PCM has detected that the electronic throttle body is not operating within its expected range or performance characteristics.
Possible causes include:
-
Dirty throttle body
-
Carbon buildup
-
Throttle plate binding
-
Faulty throttle actuator motor
-
Faulty integrated throttle-position sensor
-
Damaged throttle body
-
Wiring problems
-
Corroded or loose connectors
-
Poor power supply
-
Poor ground
-
Low battery voltage
-
Charging-system problems
-
Accelerator pedal signal problems
-
Throttle adaptation problems
-
Software/calibration issues
-
Aftermarket modifications
-
ECM/PCM faults
The most important point is that P2119 does not automatically mean the throttle body needs to be replaced.
Diagnosis should first determine whether the throttle plate is mechanically restricted and whether the commanded throttle position matches actual throttle position. The technician should then check throttle-position sensor signals, actuator operation, power supply, grounds, wiring, connectors, battery voltage, and required throttle adaptation procedures.
If the vehicle enters reduced-power mode, has severe hesitation, stalls, or develops unpredictable accelerator response, the fault should be diagnosed promptly because the electronic throttle system directly affects engine torque and vehicle acceleration.
