AutoCodes – Generic – P150E

P150E 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 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 3,745

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

What does this mean?

What are the Possible Causes of the DTC P150E?

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?

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 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 code?

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

Need Help with the Code?

Get the P150E code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P150E Buick — Supply Voltage Circuit 1 Low Voltage
P150E Cadillac — Supply Voltage Circuit 1 Low Voltage
P150E Chevrolet — Supply Voltage Circuit 1 Low Voltage
P150E GMC — Supply Voltage Circuit 1 Low Voltage

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 Code

1. What are the common symptoms of OBDII code P150E (Supply Voltage Circuit 1 Low Voltage)?

The common symptoms of code P150E may include rough engine idling, poor fuel efficiency, and difficulty starting the vehicle.

2. What are the possible causes of OBDII code P150E?

Possible causes of code P150E include a faulty ECM (Engine Control Module), damaged wiring or connectors in the supply voltage circuit, or a weak battery.

3. How can I diagnose the issue causing OBDII code P150E?

Diagnosing code P150E involves checking the battery voltage, inspecting the wiring and connectors in the supply voltage circuit, and testing the ECM for proper functioning.

4. Can a weak battery be the reason behind OBDII code P150E?

Yes, a weak battery can cause code P150E as it may not provide sufficient voltage to the ECM, leading to a low voltage condition in the supply circuit.

5. What are some repair tips for fixing OBDII code P150E?

Repair tips for addressing code P150E include checking and replacing damaged wiring or connectors, ensuring the battery is in good condition, and, if needed, replacing the ECM.

6. Is it safe to continue driving with OBDII code P150E present?

It is not recommended to drive with code P150E active, as it can lead to poor engine performance and potential stalling, posing a risk to safety and causing further damage.

7. Can a DIY enthusiast fix OBDII code P150E at home?

While some aspects of diagnosing and repairing code P150E can be done at home, it is advisable to consult a professional mechanic for a thorough inspection and proper repair to ensure the issue is resolved correctly.

8. How much does it typically cost to repair OBDII code P150E?

The cost of repairing code P150E can vary depending on the underlying cause, parts needed for replacement, and labor charges. It is best to obtain a quote from a trusted mechanic.

9. Will resetting the OBDII system clear code P150E?

Resetting the OBDII system may temporarily clear code P150E, but if the underlying issue is not addressed, the code is likely to reappear once the problem persists.

10. Can a damaged ECM cause OBDII code P150E?

Yes, a damaged or faulty ECM can cause code P150E by affecting the voltage regulation in the supply circuit, leading to a low voltage condition triggering the code.