AutoCodes – Buick – P150D Buick

P150D Buick Code - Supply Voltage Circuit 2 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
P150D Buick indicates Supply Voltage Circuit 2 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 975
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 11, 2020
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Code P150D 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 P150D Buick - Supply Voltage Circuit 2 Low Voltage - AutoCodes.com
P150D Buick Code - Supply Voltage Circuit 2 Low Voltage

What are the Possible Causes of the DTC P150D 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 P150D 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 P150D 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.

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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 P150D Buick Code

1. What does the OBDII code P150D mean on a Buick?

P150D indicates a low voltage condition in the Supply Voltage Circuit 2, which could impact vehicle performance and electronic components.

2. What are common symptoms of the P150D code in a Buick?

Symptoms may include poor engine performance, warning lights on the dashboard, reduced fuel efficiency, and intermittent electrical issues.

3. What causes the P150D code to appear?

Common causes include faulty wiring, a weak or failing battery, a defective alternator, or a damaged engine control module (ECM).

4. Can I drive my Buick with the P150D code?

While the vehicle may still run, driving with this code can lead to further electrical or performance issues and should be addressed promptly.

5. How do I diagnose the P150D code in my Buick?

Start by inspecting the battery, alternator, and wiring for signs of damage or corrosion. Use a multimeter to check for proper voltage levels in Circuit 2.

6. What repairs are commonly needed for the P150D code?

Repairs may include replacing damaged wires, cleaning or tightening electrical connections, replacing the battery, or repairing/replacing the alternator.

7. Can a bad ground connection cause the P150D code?

Yes, a poor ground connection can disrupt voltage flow, potentially triggering the P150D code.

8. Will clearing the P150D code with a scanner fix the issue?

Clearing the code will reset the warning temporarily, but the underlying issue must be resolved to prevent it from returning.

9. How much does it typically cost to fix the P150D code on a Buick?

Repairs may range from $50 to $500, depending on whether the issue is simple (like a loose wire) or more complex (like alternator replacement).

10. Can a failing sensor trigger the P150D code?

While less common, a failing sensor reliant on Circuit 2 voltage could contribute to this code. Proper diagnosis is essential.

Discuss the causes and fixes for P150D Buick OBDII Code

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