Description:

This diagnostic trouble code arises when there is a mismatch between the desired and actual positions of the air throttle actuator, potentially due to mechanical binding, sensor errors, or improper calibration.

Reaction:

The ECU may adjust throttle settings or reduce engine performance to prevent damage from incorrect throttle positioning.

Recommendations:

• Inspect Actuator and Linkage: Check for mechanical restrictions or damage that could prevent the actuator from reaching the commanded position.
• Calibrate Throttle Actuator: Perform a recalibration of the throttle actuator to align its operational range with the ECU’s expectations.
• Test Position Sensors: Ensure that sensors monitoring the actuator’s position are functioning correctly and providing accurate data.
• Replace Faulty Components: If recalibration does not correct the issue, replace the faulty actuator or sensors.
• Reset ECU and Verify Correct Operation: After making any necessary adjustments or replacements, reset the ECU to ensure it properly recognizes the actuator’s new state. Confirm correct actuator function through operational testing.

Note:

Accurate positioning of the air throttle actuator is essential for optimal engine performance and efficiency. Regular checks and maintenance can prevent issues that might lead to significant engine or vehicle problems.