AutoCodes – GMC – P150E GMC

P150E GMC 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 GMC 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.

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Code Popularity 1,032

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

What does this mean?

What are the Possible Causes of the DTC P150E GMC?

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 GMC?

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 GMC 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 P150E GMC Code

1. What does the OBDII code P150E mean on a GMC vehicle?

The P150E code indicates a "Supply Voltage Circuit 1 Low Voltage" issue, meaning the power supply to a specific control module or sensor is below the required threshold.

2. What are the common symptoms of a P150E code on a GMC?

Symptoms may include poor engine performance, reduced fuel efficiency, warning lights on the dashboard (such as the Check Engine Light), and potential issues with acceleration or idling.

3. What causes the P150E code to appear?

Common causes include a weak or failing battery, corroded or loose electrical connections, damaged wiring, or a malfunctioning control module.

4. Can a bad alternator cause the P150E code to trigger?

Yes, a faulty alternator that fails to provide adequate voltage can lead to the P150E code being stored.

5. How do you diagnose the P150E code on a GMC?

Diagnosis involves checking the battery voltage, inspecting wiring and connectors for damage or corrosion, and using a multimeter to test the voltage supply to the affected circuit.

6. Can you drive with a P150E code on a GMC?

While it may be possible to drive, itâ€™s not recommended since the low voltage condition could lead to further electrical system issues or affect vehicle performance.

7. How do you fix the P150E code on a GMC?

Repairs may involve cleaning or tightening electrical connections, replacing damaged wiring, charging or replacing the battery, or addressing issues with the alternator or control module.

8. Could a blown fuse cause the P150E code?

Yes, a blown fuse in the affected circuit could interrupt the voltage supply and trigger the P150E code.

9. How much does it typically cost to fix the P150E code on a GMC?

The repair cost varies depending on the root cause but can range from $50 for a simple connection fix to $500 or more for battery or alternator replacement.

10. Can ignoring the P150E code cause further damage to the vehicle?

Yes, ignoring this code can lead to worsening electrical issues, reduced engine performance, and potential damage to other components reliant on proper voltage supply.