AutoCodes – GMC – P150D GMC

P150D GMC 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 GMC 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.

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Code Popularity 1,205

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 P150D 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 P150D GMC - Supply Voltage Circuit 2 Low Voltage - AutoCodes.com — P150D GMC Code - Supply Voltage Circuit 2 Low Voltage

What does this mean?

What are the Possible Causes of the DTC P150D 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 P150D 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 P150D 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 P150D GMC Code

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

P150D indicates a low voltage condition in Supply Voltage Circuit 2, which impacts components that rely on this electrical circuit for proper operation.

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

Symptoms may include the check engine light turning on, poor engine performance, reduced power mode, or electrical components not functioning properly.

3. What causes the P150D code to appear?

Common causes include a faulty or weak battery, a malfunctioning alternator, damaged wiring or connectors in Supply Voltage Circuit 2, or a defective control module.

4. Can a bad battery trigger the P150D code on a GMC?

Yes, a weak or failing battery can cause insufficient voltage in the circuit, triggering the P150D code.

5. How do you diagnose the P150D code on a GMC vehicle?

Diagnosis involves checking the battery and alternator, inspecting the wiring and connectors in Circuit 2 for damage or corrosion, and testing the control module for faults.

6. Can a loose connector cause the P150D code?

Yes, a loose or corroded connector in the affected circuit can result in a low voltage condition and trigger this code.

7. Is it safe to drive with the P150D code active?

Driving with the P150D code may cause reduced power mode or electrical malfunctions, so itâ€™s best to address the issue promptly to avoid further damage.

8. How can I fix the P150D code on my GMC?

Repairs may include replacing a weak battery, fixing damaged wiring or connectors, repairing or replacing the alternator, or reprogramming/replacing the control module.

9. Can a failing alternator cause the P150D code?

Yes, a failing alternator may not provide sufficient power to Supply Voltage Circuit 2, leading to a low voltage condition.

10. How much does it cost to fix the P150D code on a GMC?

Repair costs can vary depending on the specific issue but typically range from $100 for minor wiring repairs to $500 or more if parts like the alternator or control module need replacement.