AutoCodes – Buick – P150E Buick

P150E Buick Code - Supply Voltage Circuit 1 Low Voltage

Quick Answer

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter Module 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: P150E Buick indicates Supply Voltage Circuit 1 Low Voltage.
Common causes: Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter Module 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 961

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 11, 2020

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 P150E Buick Description

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Two of the motor control modules operate their respective drive motor generator based upon drive motor generator power inverter module commands. The third motor control module controls the auxiliary transmission fluid pump motor. The hybrid powertrain control module and the motor control modules share the drive motor generator power inverter module ignition voltage circuit, battery voltage circuits and chassis earth.

OBDII Code P150E Buick - Supply Voltage Circuit 1 Low Voltage - AutoCodes.com — P150E Buick Code - Supply Voltage Circuit 1 Low Voltage

What does this mean?

What are the Possible Causes of the DTC P150E Buick?

Faulty Power Inverter Module
Power Inverter Module harness is open or shorted
Power Inverter Module circuit poor electrical connection

How to Fix the DTC P150E Buick?

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 P150E Buick 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 P150E Buick code?

Need more information on how to fix the P150E Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P150E Buick 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 P150E Buick Code

What does the OBDII code P150E mean on a Buick?

P150E indicates a low voltage issue in Supply Voltage Circuit 1, which may affect the operation of certain electrical components or sensors.

What are the symptoms of code P150E in a Buick?

Common symptoms include warning lights on the dashboard, poor engine performance, failure of specific electrical systems, or erratic operation of sensors.

What causes code P150E in a Buick?

Possible causes include a faulty wiring harness, damaged connectors, a failing control module, or a weak battery or alternator.

Can a weak battery cause the P150E code?

Yes, a weak or failing battery can lead to low voltage in the supply circuit and trigger the P150E code.

How do I diagnose code P150E on my Buick?

Start by inspecting the wiring and connectors for damage, check the battery and alternator voltage, and use a multimeter to test circuit continuity.

Is it safe to drive with code P150E in a Buick?

Driving with this code may lead to erratic electrical system behavior, so itâ€™s best to address the issue promptly to avoid further damage.

How can I fix code P150E on a Buick?

Repairs may include replacing damaged wiring, cleaning or reconnecting corroded connectors, replacing the battery, or addressing alternator issues.

Can a faulty control module cause code P150E?

Yes, a malfunctioning control module can lead to low voltage in Supply Voltage Circuit 1 and trigger the P150E code.

How much does it cost to repair code P150E on a Buick?

The cost depends on the root cause but can range from $50 for simple wiring repairs to several hundred dollars for module replacement.

Do I need professional help to fix code P150E on a Buick?

While some issues, like cleaning connectors, can be done at home, diagnosing and repairing control modules or alternator problems may require professional expertise.