AutoCodes – Buick – P1B10 Buick

P1B10 Buick Code - Drive Motor 2 Position Learn Incorrect

Quick Answer

The drive motor position sensor is monitored by the drive motor control module. Common causes include Faulty Drive Motor Generator Power Inverter Module, Drive Motor Generator Power Inverter Module harness is open or shorted, Drive Motor Generator 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: P1B10 Buick indicates Drive Motor 2 Position Learn Incorrect.
Common causes: Common causes include Faulty Drive Motor Generator Power Inverter Module, Drive Motor Generator Power Inverter Module harness is open or shorted, Drive Motor Generator 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 850

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 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B10 Buick Description

The drive motor position sensor is monitored by the drive motor control module. The drive motor control module monitors the angular position, speed and direction of the drive motor generator rotor based on the signals of the resolver-type position sensor. The position sensor contains a drive coil, two driven coils and an irregular shaped metallic rotor. The metallic rotor is mechanically attached to the shaft of the drive motor generator. At vehicle ON, the motor control module outputs a 7 volt ac, 10 kHz excitation signal to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the two driven coils and the irregular shaped rotor. The motor control module then monitors the two driven coil circuits for a return signal. The position of the irregular metallic rotor causes the magnetically-induced return signals of the driven coils to vary in size and shape. A comparison of the two driven coils signals allows the motor control module to determine the exact position, speed and direction of the drive motor rotor. The position sensor is a non-serviceable part of the drive motor.
A measurement called offset is needed for accurate determination of the motor position. Offset is the relationship between the position sensor and the drive motor generator output shaft. Whenever the vehicle is cycled to OFF, the motor control module attempts to learn the offset of the drive motor position sensor by rapidly oscillating the motor and observing the position sensor signals.

OBDII Code P1B10 Buick - Drive Motor 2 Position Learn Incorrect - AutoCodes.com — P1B10 Buick Code - Drive Motor 2 Position Learn Incorrect

What does this mean?

What are the Possible Causes of the DTC P1B10 Buick?

Faulty Drive Motor Generator Power Inverter Module
Drive Motor Generator Power Inverter Module harness is open or shorted
Drive Motor Generator Power Inverter Module circuit poor electrical connection

How to Fix the DTC P1B10 Buick?

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 P1B10 Buick 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 P1B10 Buick Code

What does the OBDII code P1B10 mean for a Buick?

The OBDII code P1B10 indicates that there is an issue with the position learning of Drive Motor 2, which may affect the operation of the hybrid or electric drive system.

What are the common symptoms associated with the P1B10 code?

Symptoms may include reduced power, warning lights on the dashboard, erratic acceleration, or the vehicle may enter limp mode to protect the system.

What causes the P1B10 code to trigger?

The code can be triggered by issues such as a faulty drive motor, problems with the position sensors, software glitches, or wiring issues in the motor control circuit.

How can I diagnose the P1B10 code accurately?

Start by using an OBDII scanner to confirm the code and check for any other related codes. Inspect the wiring and connectors related to Drive Motor 2, and test the motor and position sensors for proper function.

What repairs can fix the P1B10 code?

Repairs may include recalibrating the position sensors, replacing the faulty drive motor, repairing any damaged wiring or connectors, or updating the vehicle's software.

Can I clear the P1B10 code after making repairs?

Yes, you can clear the code using an OBDII scanner after completing the necessary repairs. However, it's important to ensure that the underlying issue is resolved to prevent the code from returning.

Is it safe to drive my Buick with the P1B10 code?

While it may be possible to drive the vehicle, it is not recommended as it could lead to reduced performance or further damage to the hybrid or electric drive system.

How much does it typically cost to repair the P1B10 code?

Repair costs can vary widely depending on the specific issue, but they may range from a few hundred dollars for minor repairs to over a thousand dollars for major component replacements.

Can a bad battery cause the P1B10 code to appear?

Yes, a weak or failing battery can affect the performance of the drive motors and potentially trigger the P1B10 code, as the system relies on sufficient power to function correctly.