DTC Code P2119 – What does this code mean?

<ul> <li><b>Engine Light ON (or Service Engine Soon Warning Light)</b>: The engine control module (ECM) detects an issue with the throttle closed position performance, triggering the engine light. This can be caused by a malfunctioning throttle body, a faulty throttle position sensor, or wiring issues.</li> <li><b>No throttle pedal response</b>: The vehicle may not respond to throttle input due to the ECM entering a fail-safe mode to prevent potential damage. This can be linked to a defective throttle actuator control motor, a misaligned throttle plate, or a problem with the throttle position sensor.</li> </ul>

<ul><li>The throttle plate may be binding or bent, preventing it from closing properly.</li><li>The throttle body assembly could be faulty, affecting the throttle's performance.</li><li>An open or shorted harness in the throttle body assembly can disrupt the signal transmission.</li><li>Poor electrical connections in the throttle body assembly circuit can lead to performance issues.</li><li>A malfunctioning Engine Control Module (ECM) might not correctly control the throttle position.</li></ul>

<ul> <li><b>Initial Scan</b>: Use an OBD-II scanner to confirm the presence of DTC P2119 and check for any additional codes that may be related.</li> <li><b>Visual Inspection</b>: Inspect the throttle body for any signs of damage, carbon buildup, or obstructions. Ensure all electrical connections are secure.</li> <li><b>Throttle Position Sensor (TPS) Check</b>: Test the TPS using a multimeter to ensure it is providing the correct voltage readings. Compare the readings to the manufacturer's specifications.</li> <li><b>Throttle Actuator Control (TAC) System Inspection</b>: Inspect the TAC system, including the wiring and connectors, for any signs of damage or corrosion. Ensure the throttle actuator motor is functioning correctly.</li> <li><b>Electronic Control Module (ECM) Check</b>: Verify that the ECM is receiving and sending the correct signals to the throttle body. Reprogram or replace the ECM if necessary.</li> <li><b>Throttle Body Cleaning</b>: Clean the throttle body to remove any carbon deposits that may be affecting its performance. Use a throttle body cleaner and a soft brush.</li> <li><b>Relearn Procedure</b>: Perform a throttle body relearn procedure to ensure the ECM correctly recognizes the throttle closed position. Follow the manufacturer's specific steps for this process.</li> <li><b>Final Test Drive</b>: Conduct a test drive to ensure the issue has been resolved and the DTC P2119 does not reappear. Monitor the throttle response and engine performance.</li></ul>

<p>The DTC code P2119 indicates a <b>Throttle Closed Position Performance</b> issue. This is a critical problem as it affects the throttle body's ability to control air intake, potentially leading to <b>engine stalling</b> or <b>loss of power</b>. Immediate actions should include:</p><ul><li>Inspecting the throttle body for obstructions or damage.</li><li>Checking the throttle position sensor and wiring for faults.</li><li>Performing a throttle body relearn procedure if necessary.</li></ul><p>Delaying repair can result in unsafe driving conditions and further engine damage.</p>