AutoCodes – Infiniti – P1124 2003 Infiniti G35

P1124 2003 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 2003 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 10,568

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1124 2003 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 2003 Infiniti G35 - Throttle Control Motor Relay Circuit Short - AutoCodes.com — P1124 2003 Infiniti G35 Code - Throttle Control Motor Relay Circuit Short

What does this mean?

What are the Possible Causes of the DTC P1124 2003 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 2003 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 2003 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.

Need more information about the P1124 2003 Infiniti G35 code?

Need more information on how to fix the P1124 2003 Infiniti G35 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1124 2003 Infiniti G35 code diagnosed by a professional: Find a repair shop in your area

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 2003 Infiniti G35 Code

1. What does the OBDII code P1124 mean for a 2003 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 the P1124 code in a 2003 Infiniti G35?

Symptoms may include reduced engine power, poor throttle response, the engine entering limp mode, or the check engine light turning on.

3. What causes the P1124 code to appear in a 2003 Infiniti G35?

Possible causes include a faulty throttle control motor relay, damaged wiring or connectors in the circuit, or a malfunctioning throttle control motor.

4. Can I drive my 2003 Infiniti G35 with the P1124 code?

It is not recommended to continue driving, as the vehicle may experience reduced performance or enter limp mode, potentially leading to unsafe driving conditions.

5. How do I diagnose the P1124 code in a 2003 Infiniti G35?

Start by inspecting the throttle control motor relay, wiring, and connectors for damage or corrosion. You can also use a multimeter to check for shorts or open circuits.

6. How do I fix the P1124 code in a 2003 Infiniti G35?

Repairs may involve replacing the faulty throttle control motor relay, repairing or replacing damaged wiring, or addressing issues with the throttle control motor.

7. Can a bad throttle control motor cause the P1124 code?

Yes, a malfunctioning throttle control motor can trigger the P1124 code if it affects the relay circuit's operation.

8. How much does it cost to fix the P1124 code on a 2003 Infiniti G35?

Repairs can cost between $100 and $400 depending on whether the issue is with the relay, wiring, or motor, and whether you perform the repairs yourself or hire a mechanic.

9. Will clearing the P1124 code fix the issue?

Clearing the code will turn off the check engine light temporarily, but the issue will return if the underlying problem is not resolved.

10. Can a failing ECU cause the P1124 code in a 2003 Infiniti G35?

While rare, a faulty engine control unit (ECU) could potentially cause the P1124 code if it fails to properly manage the throttle control motor relay circuit.