AutoCodes – Infiniti – P159B Infiniti

P159B Infiniti Code - G Sensor Circuit Range/Performance

Quick Answer

The G Sensor has a semiconductor acceleration sensor and detects longitudinal G and tilt angle of the vehicle based on gravitational acceleration. Common causes include Faulty G Sensor, G Sensor harness is open or shorted, G Sensor 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: P159B Infiniti indicates G Sensor Circuit Range/Performance.
Common causes: Common causes include Faulty G Sensor, G Sensor harness is open or shorted, G Sensor 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 936

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P159B Infiniti Description

The G Sensor has a semiconductor acceleration sensor and detects longitudinal G and tilt angle of the vehicle based on gravitational acceleration.
In addition, the G sensor converts a detected tilt angle into an electric signal and transmits it to Engine Control Module (ECM).

OBDII Code P159B Infiniti - G Sensor Circuit Range/Performance - AutoCodes.com — P159B Infiniti Code - G Sensor Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P159B Infiniti?

Faulty G Sensor
G Sensor harness is open or shorted
G Sensor circuit poor electrical connection

How to Fix the DTC P159B 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 P159B 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 P159B Infiniti code?

Need more information on how to fix the P159B Infiniti 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 P159B Infiniti Code

1. What are the common symptoms of OBDII code P159B in an Infiniti related to the G Sensor Circuit Range/Performance?

- Common symptoms include rough or erratic engine performance, reduced acceleration, and potential issues with the vehicle's stability control system.

2. What are some possible causes of OBDII code P159B in an Infiniti?

- The code P159B in an Infiniti is often triggered by a faulty G sensor, damaged wiring or connectors in the G sensor circuit, or issues with the vehicle's electronic control module.

3. How can I diagnose the G Sensor Circuit Range/Performance issue in my Infiniti when OBDII code P159B is present?

- Diagnosis typically involves using a scan tool to read the code, checking the wiring and connectors for damage, and testing the G sensor's functionality.

4. Are there any DIY repair tips for fixing OBDII code P159B related to the G Sensor Circuit in an Infiniti?

- DIY repair tips include inspecting and repairing any damaged wiring or connectors, replacing the G sensor if necessary, and ensuring proper connections and sensor alignment.

5. Can driving with the OBDII code P159B in an Infiniti be harmful to the vehicle?

- Continuing to drive with the P159B code may lead to further damage to the vehicle's stability control system and could potentially affect overall driving performance and safety.

6. How much does it typically cost to repair OBDII code P159B on an Infiniti due to G Sensor Circuit Range/Performance issues?

- The cost of repair can vary depending on the specific issue, but it may range from $100 to $500 or more, including parts and labor.

7. Is it safe to clear the OBDII code P159B in an Infiniti without addressing the underlying G Sensor Circuit problem?

- Clearing the code without fixing the underlying issue may temporarily turn off the warning light, but it will not resolve the actual problem and could lead to ongoing performance issues.

8. Can extreme weather conditions affect the G Sensor Circuit in an Infiniti and trigger code P159B?

- Yes, extreme temperatures or moisture can impact the G sensor's performance and potentially lead to the triggering of code P159B in an Infiniti.

9. How long does it typically take to repair the G Sensor Circuit issue causing OBDII code P159B in an Infiniti?

- Repair time can vary based on the specific problem, but it may take anywhere from a couple of hours to a full day, depending on the complexity of the repair.

10. Is it recommended to have a professional mechanic diagnose and repair OBDII code P159B in an Infiniti related to the G Sensor Circuit?

- Yes, it is recommended to have a qualified mechanic diagnose and repair the issue to ensure proper troubleshooting and correct resolution of the problem.