Guide To P2119 OBD Error Code Solutions

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P2119 code basically describes the throttle actuator control throttle body range/ performance. The opening of the throttle valve is carefully operated by the ETCS. As the accelerator pedal is pressed, the ECM will receive a signal from the accelerator pedal position sensor as to how much power is needed from the engine by the driver. Accordingly, the throttle plate will open on PCM’s command. The P2119 error will be set if the PCM finds out that the electronic throttle control is not functioning properly as expected. To avoid unwanted acceleration, the engine will be pushed into ‘limp home mode’ by the PCM by limiting the power that is available.

By monitoring 1 or 2 throttle position sensors, the TAC system is controlled by the PCM. The throttle bodys operation is found by the throttle plates position, which is looked after by one or more throttle actuator control motors. The APP sensor is also monitored by the PCM to know as to how fast the driver would like to go and then finds the exact throttle response. This is achieved by the PCM by changing the flow of current to the throttle actuator control motor which moves the throttle plate to the anticipated position. Some malfunctions will make the PCM to stop the operation of TAC system. This is also known as limp-mode or fail safe mode where the engine will remain idle or refuse to start.

What causes this problem with the Throttle Actuator Control Throttle Body Range?

• The throttle body might be faulty.
• The linkage or the throttle plate might be muddy.
• Defective throttle position sensor.
• Damaged accelerator pedal position sensor.
• Faulty throttle actuator control motor.
• The connector might be damaged or corroded.
• The wires might be defective or broken.
• The PCM might be defective.

1. Throttle Control System – Malfunctioning of the throttle control system will take place if the power is less. Repair or replace the throttle control system immediately.
2. Throttle Valve – Any blockages in the throttle valve can cause malfunctioning of the vehicle which in turn reduces the performance of the engine. Repair or replace the damaged throttle valve as needed.
3. Throttle Body – A very low idle after starting the vehicle indicates that the throttle body is defective. Get it fixed instantly by buying a new throttle body from Parts Avatar.
4. Throttle Plate – A dirty throttle plate will result in poor or low idle. Change it with a new throttle plate from PartsAvatar as quickly as possible.

5. Powertrain Control Module – Performance issue may rise in your vehicle if the PCM is defective. Replace the defective PCM  – Performance issue may rise in your vehicle if the PCM is defective. Replace the defective PCM by shopping a new one from PartsAvatar.

6. Engine Control Module – Conditions of misfire indicates that the ECM is faulty which needs replacement as soon as possible.
7. Throttle Position Sensor – One of the symptom for a defective throttle position sensor, is the engine stalling. Get rid of the damaged throttle position sensor immediately.
8. Accelerator Pedal Position Sensor – Do you experience a sudden surge in speed while driving in the highway? Then it’s a high time you replace your accelerator pedal position sensor as it can be defective.
9. Throttle Actuator Control Motor – Throttle actuator control motor can be damaged if the engine refuses to start. Alter it as soon as possible.
10. Engine Wiring Connectors - The engine wiring connectors play an important role in connecting various components. Is the engine wiring connector broken? Get the replacement for a Faulty Engine Wiring Connectors at an affordable price from PartsAvatar.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P2119 here:

Common Symptoms

• The engine will refuse to start due to weak performance which keeps prevailing.
• There will be no throttle response or very less.
• Flashing of the check engine light.
• Tailpipe will emit smokes.
• Fuel consumption will be more.

Want to correct the Trouble Code P2119? Read these points mentioned below:

• The throttle body needs replacement.
• The throttle plate as well as the linkage must be cleaned.
• The throttle position sensor needs fixation
• Changing the throttle actuator control motor.
• The accelerator pedal position sensor must be replaced.
• Corrosion in the connectors must be cleaned.
• Damaged wired must be changed.
• Fixing or flashing the faulty PCM.

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It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P2119 code to be stored:

• You will need several instruments to effectively diagnose this code.
• A DVOM, an oscilloscope and a scanner can help in performing a successful diagnosis.
• You will also need a manufacturer’s service manual.
• Visually inspect the wires and the connectors.
• Repair the separated, eroded and damaged wires, connectors and other parts as needed.
• Retest the system after successful diagnosis. If every components are in proper working condition, then attach a scanner to the diagnostic connector and recover the stored codes and freeze frame data.
• This step can be highly useful to determine if there are any erratic conditions which made to code to get stored.
• Clear the codes and test the vehicle to see if the error returns.
• This can help you to know if the malfunction was erratic. Clear the codes again and test drive to see if the error reappears.
• There might be an erratic condition, if the code refuses to return instantly.
• It can be quite challenging to diagnose this error code where at times you have to worsen this condition.
• This code is valid to vehicle which has a throttle body that is electronically controlled.
• It is also known as drive-by-wire-throttle body.
• The accelerator pedal arm which has a sensor will send voltage signal to PCM, where the throttle body will open, or close based on the command.
• The throttle actuator is activated by the voltage signal from the PCM in the path which is needed to change voltage levels and polarity.
• When the throttle actuator motor turns, a gear in the throttle body will turn, which is engaged with a large gear.
• The ratio change will allow the plate to open slowly, quickly, suddenly or progressively based on the controller’s commands.
• Start testing the electrical connector of the throttle position sensor.
• Use a DVOM to verify the voltage and ground signal by separating the connector from the sensor.
• You must find a 5-volt reference signal and battery ground.
• For exact wiring diagrams and connector views, verify the manufacturer’s service manual.
• If there is no reference voltage or ground, separate the PCM as well as its related connectors and carry out a resistance and continuity test.
• Replace the shorted or open circuits as needed.
• Test drive the vehicle by clearing the codes and make sure that a positive repair has been done.
• If both the voltage and ground signal agrees with the manufacturer’s specification at the throttle position sensor, then check the pedal sensor operation by using an oscilloscope.
• Check for any abnormalities, glitches or voltage issues.
• Change the throttle pedal position sensor as needed.
• Test drive the vehicle by clearing the codes and make sure that a positive repair has been done. The PCM or other controllers can be faulty if the TPP sensor as well as its linked circuits agree with manufacturer’s specification.
• A trained technician has to reprogram the controller replacement.
• As you activate the motor with the help of scanner, test both the voltage and ground signals at the connector of throttle actuator control motor.
• If they are not present, separate the connector from the PCM as well as its linked controllers and perform a resistance and continuity test for individual circuit.
• Repair the open, shorted or separated circuits as needed.
• Test drive the vehicle by clearing the codes and make sure that a positive repair has been done.
• As you activate the motor with the help of scanner, if both the voltage and ground signals at the connector of throttle actuator control motor is present, change the motor, clear the codes to make sure that the repair is positive.
• Service parts for ‘drive-by-wire’ throttle bodies is provided by most automakers.
• You have to replace the throttle body which also includes the actuator and TPS.
• You may also have to replace the pedal sensor along with throttle body.
• For specific recommendation by the manufacturer, check the vehicle service manual.
• One of the best practice is to hand over to the professionals as there are many circuits involved in the process.
• With the help of Autohex, the mechanic will be able to easily identify the area of malfunction than a normal scanner tool rather than using a DVOM or code reader.
• If you remove every pin of the CAN bus it will take too much time and will be more costly.
• Also, installing a memory saving device can be beneficial, unless, the PCM and other controllers miss their memory and must be reprogrammed.
• A CAN scanner can exactly diagnose the circuit problems and displays the pin values and operation of the control module without any risk while you operate the vehicle.
• To perform one such diagnosis with a DVOM you have to examine thousands of independent circuits.
• You have to reprogram the entire system even if one probe is misplaced. As a safety precaution, you can perform the continuity test once you separate all control modules, which needs about 40 hours depending on your vehicle.
• Some applications will have 18 separate control module, and if you perform this test on your own, start inspecting the circuits, wires and connectors.
• Carry out a continuity test with the battery grounds as these error codes are most often caused by a damaged system grounds.
• This error usually arises due to damaged or separated system grounds.
• The system ground divergences can be easily diagnosed with an auxiliary cable.
• After a successful repair, every hanging cable and transmission ground straps, wires must be fixed.
• Most often loose wires and electrical connectors can give rise to this error code being stored.
• And so before proceeding, check for continuity between the connectors of individual controllers.
• Compare your readings with the manufacturer’s and repair if any damages are found.
• Rather than removing the wires from complicated circuits, it is best to replace the damaged wires.

Common Mistakes When Diagnosing the P2119 Code

• Damaged PCM.
• Defective throttle control motor.
• Problematic wires.

P2118 - Throttle Actuator Control Motor Current Range/Performance