Throttle Actuator Control System - Forced Engine Shutdown

What it means

The engine computer has detected a serious fault in the electronic throttle system that makes running the engine unsafe, so it shut the engine down or prevents it from running. This code is the result of another fault, and usually appears with a code that names the cause, such as a throttle motor, sensor or computer processor fault.

Related codes: P2104P2106P2110P2100P0606

Symptoms3

• The engine shuts off suddenly or will not run.
• Check engine light on together with the electronic throttle warning light.
• Other throttle or computer codes are stored.

Possible causes5

• Throttle plate stuck or not responding to computer commands.
• Throttle or pedal position sensor faults that leave the computer unsure of the throttle position.
• Fault in the throttle motor circuit.
• Weak or unstable battery voltage or grounds.
• Internal processor fault in the engine computer (ECU).

How to diagnose5

1. Read all stored codes and fix the accompanying code first, since it names the cause.
2. Check the battery, ground points and charging system.
3. Inspect the throttle plate with the engine off for binding or a foreign object.
4. Watch throttle and pedal sensor readings on a scan tool with the key on.
5. Inspect the throttle and computer connectors, and have the computer tested if an internal fault code is present.

How to fix5

1. Repair the battery or grounds if voltage is weak or unstable.
2. Repair faulty connectors or wiring.
3. Clean or replace the throttle body based on the test results, then perform the relearn.
4. Update or replace the engine computer if it is proven faulty.
5. Clear the codes and confirm the engine runs normally and the code does not return.

Repair cost

In Saudi riyals; the highlighted part is the expected range for this fault.

The cost is low for a battery or ground fault, rises for a throttle body, and reaches the upper end when a new engine computer with programming is needed.

Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026

Frequently asked questions