Engine-CodesInfiniti – P1124 Infiniti

P1124 Infiniti Code - Throttle Control Motor Relay Circuit Short

Quick Answer

The P1124 Infiniti diagnostic trouble code indicates a problem with the throttle control motor relay circuit. Common causes include Damaged wiring or connections in the throttle control motor relay circuit, Faulty throttle control motor relay, Malfunctioning throttle control motor. 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 Infiniti indicates Throttle Control Motor Relay Circuit Short.
Common causes
Common causes include Damaged wiring or connections in the throttle control motor relay circuit, Faulty throttle control motor relay, Malfunctioning throttle control motor.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1124 Infiniti Description

The P1124 Infiniti diagnostic trouble code indicates a problem with the throttle control motor relay circuit. This code is specific to Infiniti vehicles and is related to the electronic throttle control system. The throttle control motor relay circuit is responsible for controlling the operation of the throttle control motor, which regulates the airflow into the engine. When this circuit experiences a short, it can lead to issues with the throttle control system, affecting the vehicle's performance.

OBDII Code P1124 Infiniti - Throttle Control Motor Relay Circuit Short
P1124 Infiniti Code - Throttle Control Motor Relay Circuit Short

Common Causes of P1124 Infiniti

  1. Damaged wiring or connections in the throttle control motor relay circuit
  2. Faulty throttle control motor relay
  3. Malfunctioning throttle control motor
  4. Issues with the engine control module (ECM)
  5. Water or moisture damage to the throttle control system

Symptoms of P1124 Infiniti

  1. Erratic throttle response
  2. Poor acceleration
  3. Stalling or hesitation during acceleration
  4. Vehicle going into limp mode
  5. Check Engine Light illuminated

How to Fix P1124 Infiniti

  1. Diagnose the issue using a scan tool to retrieve the trouble codes and determine the exact cause of the problem.
  2. Inspect the wiring and connections in the throttle control motor relay circuit for any damage or corrosion.
  3. Test the throttle control motor relay and throttle control motor for proper operation.
  4. Replace any damaged components such as wiring, relay, or motor as needed.
  5. Clear the trouble codes from the ECM and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1124 Infiniti

The cost of repairing a throttle control motor relay circuit short can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary widely, so it's recommended to obtain quotes from multiple shops to get an accurate estimate. Additionally, the cost may be higher if other related components need to be replaced or if additional repairs are required.

When is the Code Detected?

- ECM detect the throttle control motor relay is stuck ON.

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Information for Specific Infiniti Models

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.

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