AutoCodes – Infiniti – P1052 Infiniti

P1052 Infiniti Code - Air Fuel Ratio Sensor 1 Heater Control Circuit High Bank 2

Quick Answer

The Engine Control Module (ECM) performs ON/OFF duty control of the Air Fuel Ratio (A/F) sensor 1 heater corresponding to the engine operating condition to keep the temperature of A/F sensor 1 element at the specified range. Common causes include Faulty Air Fuel Ratio Sensor 1 Bank 2, Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted, Air Fuel Ratio Sensor 1 Bank 2 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: P1052 Infiniti indicates Air Fuel Ratio Sensor 1 Heater Control Circuit High Bank 2.
Common causes: Common causes include Faulty Air Fuel Ratio Sensor 1 Bank 2, Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted, Air Fuel Ratio Sensor 1 Bank 2 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 3,567

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 06, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1052 Infiniti Description

OBDII Code P1052 Infiniti - Air Fuel Ratio Sensor 1 Heater Control Circuit High Bank 2 - AutoCodes.com — P1052 Infiniti Code - Air Fuel Ratio Sensor 1 Heater Control Circuit High Bank 2

What does this mean?

What are the Possible Causes of the DTC P1052 Infiniti?

Faulty Air Fuel Ratio Sensor 1 Bank 2
Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted
Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection

How to Fix the DTC P1052 Infiniti?

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 P1052 Infiniti 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 P1052 Infiniti code?

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Need Help with the Code?

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Information for Specific Infiniti Models

P1052 2004 Infiniti G35 — Air Fuel Ratio Sensor 1 Heater Control Circuit High Bank 2
P1052 2005 Infiniti G35 — Air Fuel Ratio Sensor 1 Heater Control Circuit High Bank 2

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.