P2104 Fault Code

Throttle Actuator Control System Forced Idle

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2104 fault code indicates that the Throttle Actuator Control System has been forced into an idle state by the engine control module (ECM). This is a safety feature that prevents the vehicle from accelerating under certain conditions, ensuring safe operation when a problem is detected in the throttle control system.

What are the symptoms of the P2104 code?

• Engine may not accelerate as expected
• The vehicle may be stuck in idle or limited to low RPMs
• Dashboard warning lights may illuminate, particularly the check engine light
• Unresponsive throttle pedal input

What causes the P2104 code?

• Malfunctioning throttle actuator or motor
• Faulty wiring or connectors in the throttle control circuit
• Issues with the ECM software or calibration
• Problems with the electronic throttle control system sensors

How to fix P2104?

• Inspect and repair any damaged wiring or connectors within the throttle control circuit
• Replace the throttle actuator or motor if faulty
• Update or reprogram the ECM if software issues are detected
• Conduct thorough testing of the associated sensors and replace as necessary