P2104 Hyundai Code - Electronic Throttle Control System Forced Idle
Quick Answer
The Electronic Throttle Control(ETC) system is made of the components throttle body, Throttle Position Sensor(TPS)1&2 and Accelerator Position Sensor(APS) 1&2. Common causes include Faulty Accelerator Position Sensor(APS), Faulty APS+Brake, Faulty APS + Vehicle speed sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2104 Hyundai indicates Electronic Throttle Control System Forced Idle.
- Common causes
- Common causes include Faulty Accelerator Position Sensor(APS), Faulty APS+Brake, Faulty APS + Vehicle speed sensor.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2104 Hyundai Description
2006 Hyundai Sonata Electronic Throttle Control System
What are the Possible Causes of the DTC P2104 Hyundai?
- Faulty Accelerator Position Sensor(APS)
- Faulty APS+Brake
- Faulty APS + Vehicle speed sensor
- Faulty APS + Vehicle speed sensor + Brake
- Faulty Electronic Throttle Control(ETC) Items(TPS or ETC motor etc)
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P2104 Hyundai?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2104 Hyundai code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P2104 Hyundai code?
Need more information on how to fix the P2104 Hyundai code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2104 Hyundai code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2104 Hyundai Code
1. What does the OBDII code P2104 mean on a Hyundai?
P2104 indicates that the Electronic Throttle Control (ETC) system is in "Forced Idle Mode," meaning the engine's throttle is restricted to prevent potential damage or unsafe operation.
2. What are the common symptoms of code P2104 on a Hyundai?
Symptoms include reduced engine power, limited throttle response, the engine staying at idle, and the Check Engine Light or other warning lights illuminating.
3. What causes the P2104 code on a Hyundai?
Common causes include a malfunctioning throttle body, a failing throttle position sensor, wiring or connector issues in the throttle control system, or a problem with the powertrain control module (PCM).
4. Can I drive my Hyundai with the P2104 code active?
Driving with P2104 is not recommended, as the vehicle may not respond properly to throttle input, leading to unsafe driving conditions.
5. How do I diagnose the P2104 code on a Hyundai?
Start by checking for loose or damaged wiring around the throttle body and ETC system. Use an OBDII scanner to confirm the code and inspect throttle position sensor data for irregularities.
6. What repairs can fix the P2104 code on a Hyundai?
Repairs may include cleaning or replacing the throttle body, replacing a faulty throttle position sensor, repairing damaged wiring, or reprogramming or replacing the PCM.
7. Can a dirty throttle body cause the P2104 code on a Hyundai?
Yes, carbon buildup or dirt on the throttle body can interfere with its operation, triggering the P2104 code.
8. How much does it cost to fix the P2104 code on a Hyundai?
Repair costs vary but may range from $150 to $700 depending on whether the issue involves cleaning the throttle body, replacing parts, or addressing wiring or PCM problems.
9. Does the P2104 code always mean the throttle body is bad?
No, it can also be caused by sensor malfunctions, wiring issues, or software-related problems in the control module.
10. How can I prevent the P2104 code on my Hyundai?
Regular maintenance, including cleaning the throttle body and inspecting wiring and sensors, can help prevent issues with the ETC system.
Discuss the causes and fixes for P2104 Hyundai OBDII Code
Code P2104 Hyundai comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
