P1B44 GMC Code - Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High 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/EV powertrain control module 1. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack. 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
- P1B44 GMC indicates Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage.
- Common causes
- Common causes include Faulty Hybrid/Electric Vehicle Battery Pack.
- 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.
Code P1B44 GMC Description
The motor control modules test for isolation between each high voltage bus and vehicle chassis whenever high voltage is present at the power inverter module.
What are the Possible Causes of the DTC P1B44 GMC?
- Faulty Hybrid/Electric Vehicle Battery Pack
How to Fix the DTC P1B44 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 P1B44 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.
Need more information about the P1B44 GMC code?
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Need Help with the Code?
Get the P1B44 GMC code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1B44 GMC Code
1. What are common symptoms of OBDII code P1B44 GMC Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage?
The common symptoms include the check engine light illuminating, reduced hybrid/EV system performance, and potential drivability issues.
2. What can cause OBDII code P1B44 GMC to trigger?
This code is typically triggered by issues with the hybrid/EV battery voltage isolation sensing circuit 2, such as a high voltage reading that exceeds the normal parameters.
3. How serious is OBDII code P1B44 GMC Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage?
While the vehicle may still be operable with this code, it is important to address it promptly to prevent further damage to the hybrid/EV system components.
4. Can I continue driving with OBDII code P1B44 GMC present?
It is recommended to avoid driving the vehicle extensively with this code present, as it can lead to performance issues and potential damage to the hybrid/EV system.
5. How can I diagnose OBDII code P1B44 GMC Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage?
Diagnosis typically involves using a professional OBDII scanner to read the code, followed by testing the hybrid/EV battery voltage isolation sensing circuit 2 components for faults.
6. What are some repair tips for addressing OBDII code P1B44 GMC?
Repair tips may include checking and repairing any damaged wiring or connectors in the hybrid/EV battery voltage isolation sensing circuit 2, as well as ensuring proper voltage readings.
7. Is it possible to reset OBDII code P1B44 GMC Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage?
Resetting the code may temporarily turn off the check engine light, but it is important to address the underlying issue causing the code to prevent it from reoccurring.
8. Can a DIY enthusiast fix OBDII code P1B44 GMC?
While some basic diagnostic steps can be performed by a DIY enthusiast, addressing the root cause of the code may require professional assistance due to the complexity of the hybrid/EV system.
9. How much does it cost to repair OBDII code P1B44 GMC?
The cost of repair can vary depending on the extent of the issue, parts needed for replacement, and labor costs. It is recommended to obtain quotes from automotive professionals.
10. Are there any recalls or technical service bulletins related to OBDII code P1B44 GMC Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage?
It is advisable to check with the manufacturer or authorized dealerships for any recalls or technical service bulletins related to this specific OBDII code to see if there are known issues or remedies available.
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