AutoCodes – Generic – P1B01

P1B01 Code - Drive Motor 2 Control Module Programmable Logic Device Security Code

Quick Answer

This diagnostic applies to internal microprocessor integrity conditions within the Hybrid Powertrain Control Module (HPCM). Common causes include Reprogram Power Inverter Control Module (PIM), Faulty Power Inverter Control Module (PIM), Power Inverter Control Module (PIM) harness is open or shorted. 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: P1B01 indicates Drive Motor 2 Control Module Programmable Logic Device Security Code.
Common causes: Common causes include Reprogram Power Inverter Control Module (PIM), Faulty Power Inverter Control Module (PIM), Power Inverter Control Module (PIM) harness is open or shorted.
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 5,355

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 Mar 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B01 Description

This diagnostic applies to internal microprocessor integrity conditions within the Hybrid Powertrain Control Module (HPCM). The HPCM and each Motor Control Module (MCM) utilize a Programmable Logic Device (PLD) to perform certain input and output functions. MCM 1 programs the PLD with software at every ignition ON event. MCM 1 and 2 verify that the PLD is programmed successfully.

OBDII Code P1B01 - Drive Motor 2 Control Module Programmable Logic Device Security Code - AutoCodes.com — P1B01 Code - Drive Motor 2 Control Module Programmable Logic Device Security Code

What does this mean?

What are the Possible Causes of the DTC P1B01?

Reprogram Power Inverter Control Module (PIM)
Faulty Power Inverter Control Module (PIM)
Power Inverter Control Module (PIM) harness is open or shorted
Power Inverter Control Module (PIM) circuit poor electrical connection

How to Fix the DTC P1B01?

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 P1B01 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 P1B01 code?

Need more information on how to fix the P1B01 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1B01 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1B01 Buick — Drive Motor 2 Control Module Programmable Logic Device Security Code
P1B01 Cadillac — Drive Motor 2 Control Module Programmable Logic Device Security Code
P1B01 Chevrolet — Drive Motor 2 Control Module Programmable Logic Device Security Code
P1B01 GMC — Drive Motor 2 Control Module Programmable Logic Device Security Code
P1B01 Saturn — Drive Motor 2 Control Module Programmable Logic Device Security Code

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 P1B01 Code

1. What are the common symptoms of OBDII code P1B01 (Drive Motor 2 Control Module Programmable Logic Device Security Code)?

- Common symptoms include reduced performance, loss of power, and illuminated warning lights on the dashboard.

2. What can cause OBDII code P1B01 to be triggered?

- This code is typically triggered by a security code mismatch within the drive motor 2 control module's programmable logic device.

3. How serious is OBDII code P1B01?

- This code should be addressed promptly as it can affect the functioning of the drive motor 2 control module, potentially leading to drivability issues.

4. Can I continue driving with OBDII code P1B01 present?

- It is not recommended to continue driving with this code active, as it may result in further damage to the drive motor 2 control module.

5. How can I diagnose and repair OBDII code P1B01?

- Diagnosing and repairing this code requires advanced diagnostic equipment to access the control module and reprogram the security code as needed.

6. Is it possible to reset OBDII code P1B01 without professional help?

- Resetting this code typically requires specialized knowledge and equipment, so it is best to seek professional assistance for proper diagnosis and repair.

7. Are there any DIY tips for preventing OBDII code P1B01 from recurring?

- Regularly maintaining and servicing the vehicle's electrical system and drive motor components can help prevent the recurrence of this code.

8. How much does it cost to fix OBDII code P1B01?

- The cost of fixing this code can vary depending on the extent of the issue and the labor rates of the repair shop. It is recommended to get a few quotes for comparison.

9. Can OBDII code P1B01 affect fuel efficiency?

- Yes, this code can potentially affect fuel efficiency by impacting the performance of the drive motor 2 control module.

10. Is OBDII code P1B01 a common issue in specific vehicle makes or models?

- This code may be more common in hybrid or electric vehicles that utilize drive motor control modules, but it can still occur in other types of vehicles as well.