AutoCodes – Infiniti – P0125 2006 Infiniti G35

P0125 2006 Infiniti G35 Code - Insufficient Coolant Temperature for Closed Loop Fuel Control

Quick Answer

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Low engine coolant level, Leaking or stuck open thermostat, Faulty Engine Coolant Temperature (ECT) 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: P0125 2006 Infiniti G35 indicates Insufficient Coolant Temperature for Closed Loop Fuel Control.
Common causes: Common causes include Low engine coolant level, Leaking or stuck open thermostat, Faulty Engine Coolant Temperature (ECT) 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.

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Code Popularity 5,131

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 Nov 08, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0125 2006 Infiniti G35 Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

OBDII Code P0125 2006 Infiniti G35 - Insufficient Coolant Temperature for Closed Loop Fuel Control - AutoCodes.com — P0125 2006 Infiniti G35 Code - Insufficient Coolant Temperature for Closed Loop Fuel Control

What does this mean?

What are the Possible Causes of the DTC P0125 2006 Infiniti G35?

Low engine coolant level
Leaking or stuck open thermostat
Faulty Engine Coolant Temperature (ECT) sensor
Engine Coolant Temperature sensor harness is open or shorted
Engine Coolant Temperature sensor electrical circuit poor connection

How to Fix the DTC P0125 2006 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 P0125 2006 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 P0125 2006 Infiniti G35 code?

Need more information on how to fix the P0125 2006 Infiniti G35 code? Get Access to Factory Service Manuals

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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 P0125 2006 Infiniti G35 Code

What are the common symptoms of OBDII code P0125 on a 2006 Infiniti G35?

The common symptoms of OBDII code P0125 on a 2006 Infiniti G35 include the Check Engine Light coming on, poor fuel economy, engine overheating, and rough idling.

What are the possible causes of OBDII code P0125 on a 2006 Infiniti G35?

The possible causes of OBDII code P0125 on a 2006 Infiniti G35 include a faulty thermostat, low coolant levels, a malfunctioning coolant temperature sensor, or a problem with the cooling system.

How can I diagnose the OBDII code P0125 on a 2006 Infiniti G35?

Diagnosing OBDII code P0125 on a 2006 Infiniti G35 involves using an OBDII scanner to retrieve the code, checking the coolant level and condition, inspecting the thermostat, and testing the coolant temperature sensor.

What are some repair tips for fixing OBDII code P0125 on a 2006 Infiniti G35?

Some repair tips for fixing OBDII code P0125 on a 2006 Infiniti G35 include replacing the thermostat if it's stuck open, topping up the coolant level if it's low, replacing a faulty coolant temperature sensor, and ensuring the cooling system is functioning properly.

Can I continue driving my 2006 Infiniti G35 with OBDII code P0125?

It is not recommended to continue driving your 2006 Infiniti G35 with OBDII code P0125, as it can lead to engine overheating, poor fuel economy, and potential damage to the engine components. It's best to address the issue promptly.

How serious is OBDII code P0125 on a 2006 Infiniti G35?

OBDII code P0125 on a 2006 Infiniti G35 is considered a moderately serious issue. While it may not cause immediate engine failure, it can lead to poor fuel efficiency, engine overheating, and potential long-term damage if left unaddressed.

Is OBDII code P0125 a common problem in 2006 Infiniti G35 vehicles?

Yes, OBDII code P0125, indicating insufficient coolant temperature for closed-loop fuel control, is a relatively common issue in 2006 Infiniti G35 vehicles. It is often related to cooling system problems or faulty sensors.

How much does it cost to repair OBDII code P0125 on a 2006 Infiniti G35?

The cost to repair OBDII code P0125 on a 2006 Infiniti G35 can vary depending on the root cause of the issue. Typically, repairs for this code can range from $100 to $500, including parts and labor.