AutoCodes – Infiniti – P1124 2005 Infiniti G35

P1124 2005 Infiniti G35 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 2005 Infiniti G35 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.

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Code Popularity 7,944

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1124 2005 Infiniti G35 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 2005 Infiniti G35 - Throttle Control Motor Relay Circuit Short - AutoCodes.com — P1124 2005 Infiniti G35 Code - Throttle Control Motor Relay Circuit Short

What does this mean?

What are the Possible Causes of the DTC P1124 2005 Infiniti G35?

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 2005 Infiniti G35?

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 2005 Infiniti G35 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.

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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 2005 Infiniti G35 Code

1. What does the OBDII code P1124 mean for a 2005 Infiniti G35?

P1124 indicates a problem with the Throttle Control Motor Relay Circuit, specifically a short in the circuit.

2. What are the common symptoms of code P1124 in a 2005 Infiniti G35?

Symptoms include poor throttle response, reduced engine performance, the Check Engine Light illuminating, and sometimes the engine entering "limp mode."

3. What causes the P1124 code on a 2005 Infiniti G35?

The most common causes include a faulty throttle control motor relay, damaged wiring or connectors, or a short circuit in the throttle control motor relay circuit.

4. Can a dirty throttle body cause the P1124 code?

No, a dirty throttle body typically wonâ€™t trigger P1124, but it could cause other throttle-related issues. P1124 specifically pertains to an electrical issue in the relay circuit.

5. How can I diagnose the P1124 code on my 2005 Infiniti G35?

Start by inspecting the throttle control motor relay, its wiring, and connectors for damage or shorts. Use a multimeter to test the circuit for proper voltage and continuity.

6. Is it safe to drive a 2005 Infiniti G35 with the P1124 code?

Driving with this code is not recommended, as it can lead to reduced engine performance or the vehicle entering limp mode, potentially causing unsafe driving conditions.

7. How do you fix code P1124 on a 2005 Infiniti G35?

Repairs may include replacing the throttle control motor relay, repairing or replacing damaged wiring, or addressing any short circuits in the throttle relay circuit.

8. How much does it cost to fix the P1124 code on a 2005 Infiniti G35?

The repair cost varies, but replacing a throttle control motor relay typically costs $50â€“$100 for parts, plus labor if done by a professional.

9. Can a dead battery cause the P1124 code?

While unlikely, a severely low or unstable voltage from a failing battery or alternator can sometimes cause electrical issues, including triggering this code.

10. Does the P1124 code require reprogramming the ECU after repairs?

In most cases, reprogramming is not necessary. However, clearing the code with a scan tool and performing a throttle relearn procedure may be required.