AutoCodes – Generic – P159D

P159D Code - G Sensor Circuit High Input

Quick Answer

The G Sensor has a semiconductor acceleration sensor and detects the 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: P159D indicates G Sensor Circuit High Input.
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.

Save to My Repairs My Repairs

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

Code Popularity 12,413

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 Aug 16, 2022

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 P159D Description

The G Sensor has a semiconductor acceleration sensor and detects the 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). The Diagnostic Trouble Code (DTC) will be set when the G sensor signal to the ECM is not within factory specifications.

OBDII Code P159D - G Sensor Circuit High Input - AutoCodes.com — P159D Code - G Sensor Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P159D?

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

How to Fix the DTC P159D?

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 P159D 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 P159D code?

Need more information on how to fix the P159D code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P159D code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P159D BMW — Idle Air Control Actuator 2 Read Only Memory Error
P159D Buick — Power Take-Off Remote Mode Switch Circuit
P159D Cadillac — Power Take-Off Remote Mode Switch Circuit
P159D Chevrolet — Power Take-Off Remote Mode Switch Circuit
P159D GMC — Power Take-Off Remote Mode Switch Circuit
P159D Infiniti — G Sensor Circuit High Input
P159D MINI — Idle Air Control Actuator 2 Read Only Memory Error
P159D Nissan — G Sensor Circuit High Input

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 P159D Code

1. What are the common symptoms of OBDII code P159D (G Sensor Circuit High Input)?

- Common symptoms may include the vehicle's stability control system malfunctioning, the traction control light coming on, and potential loss of traction control functionality.

2. What can cause OBDII code P159D to trigger?

- This code can be triggered by a faulty G sensor, damaged wiring in the G sensor circuit, or a poor connection in the sensor circuit.

3. How serious is OBDII code P159D?

- While the code itself may not cause immediate harm to the vehicle, it can affect the functionality of the stability control system, potentially compromising safety during certain driving conditions.

4. Can I continue driving with OBDII code P159D present?

- It is generally not recommended to continue driving with this code active, as it can impact the vehicle's stability control system, leading to potential safety risks.

5. How can I diagnose the root cause of OBDII code P159D?

- Diagnosis typically involves inspecting the G sensor and its wiring for any visible damage, testing the sensor's functionality, and checking for loose connections in the circuit.

6. Is it possible to repair OBDII code P159D on my own?

- Depending on your automotive experience and access to tools, you may be able to address this code on your own by replacing the faulty G sensor or repairing any damaged wiring in the circuit.

7. Is resetting the OBDII code P159D sufficient to fix the issue?

- Simply resetting the code without addressing the underlying problem will not resolve the issue. It's important to diagnose the cause and make necessary repairs to prevent the code from reoccurring.

8. Can extreme weather conditions affect OBDII code P159D?

- Extreme weather conditions, such as extreme heat or cold, can potentially impact the G sensor's performance and contribute to triggering the code.

9. What are the typical repair costs for fixing OBDII code P159D?

- Repair costs can vary depending on the extent of the issue and whether you choose to address it yourself or seek professional help. Costs may include parts and labor for sensor replacement or wiring repairs.

10. How long can I safely drive with OBDII code P159D before getting it repaired?

- It is recommended to address this code as soon as possible to prevent any potential safety risks associated with the compromised stability control system.