AutoCodes – Generic – P1124

P1124 Code - Throttle Control Motor Relay Circuit Short

Quick Answer

Power supply for the throttle control motor is provided to the Engine Control Module (ECM) via throttle control motor relay. Common causes include Faulty Throttle Control Motor relay, Throttle Control Motor relay harness is open or shorted, Throttle Control Motor relay circuit poor electrical connection. 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
P1124 indicates Throttle Control Motor Relay Circuit Short.
Common causes
Common causes include Faulty Throttle Control Motor relay, Throttle Control Motor relay harness is open or shorted, Throttle Control Motor relay circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 54,410
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Mar 04, 2023
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P1124 Description

Power supply for the throttle control motor is provided to the Engine Control Module (ECM) via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM.
OBDII Code P1124 - Throttle Control Motor Relay Circuit Short - AutoCodes.com
P1124 Code - Throttle Control Motor Relay Circuit Short

What are the Possible Causes of the DTC P1124?

  • Faulty Throttle Control Motor relay
  • Throttle Control Motor relay harness is open or shorted
  • Throttle Control Motor relay circuit poor electrical connection

How to Fix the DTC P1124?

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 P1124 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 P1124 code?

Need more information on how to fix the P1124 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1124 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1124 Code

1. What are common symptoms of OBDII code P1124 (Throttle Control Motor Relay Circuit Short)?

- Common symptoms include engine stalling, hesitation during acceleration, poor engine performance, and illuminated Check Engine Light.

2. What causes the OBDII code P1124 to appear?

- The code P1124 is typically triggered by a short circuit in the throttle control motor relay circuit, often caused by damaged wiring or a faulty relay.

3. How can I diagnose the OBDII code P1124?

- To diagnose the code P1124, you can use an OBDII scanner to retrieve the code, inspect the throttle control motor relay and related wiring for damage, and perform circuit testing to identify the short circuit.

4. What are the potential repair options for OBDII code P1124?

- Repair options for code P1124 may include repairing or replacing damaged wiring, replacing the throttle control motor relay, or addressing any underlying issues causing the short circuit.

5. Can I drive my vehicle with the OBDII code P1124 present?

- It is not recommended to drive your vehicle with the code P1124 present, as it can lead to further damage to the engine or emission control system.

6. How much does it cost to repair OBDII code P1124?

- The cost of repairing OBDII code P1124 can vary depending on the extent of the damage and the specific repairs needed. It's best to consult a mechanic for an accurate estimate.

7. Is OBDII code P1124 a serious issue?

- OBDII code P1124 should be addressed promptly to prevent potential engine performance issues and further damage to the vehicle's systems.

8. Can a DIY enthusiast repair OBDII code P1124?

- If you have experience with automotive electrical systems and access to the necessary tools, you may be able to repair OBDII code P1124 yourself. However, it's recommended to consult a professional if you're unsure.

9. Will resetting the OBDII code P1124 make it go away?

- Resetting the code may temporarily turn off the Check Engine Light, but if the underlying issue causing the code is not fixed, it is likely to reappear.

10. How can I prevent OBDII code P1124 from reoccurring?

- Regular maintenance of the throttle control system, including checking for damaged wiring and replacing worn components, can help prevent the recurrence of OBDII code P1124.

Discuss the causes and fixes for P1124 OBDII Code

Code P1124 comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play