AutoCodes – Chevrolet – P1B0F Chevrolet

P1B0F Chevrolet Code - Drive Motor 1 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: P1B0F Chevrolet indicates Drive Motor 1 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 2,174

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 P1B0F Chevrolet 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 P1B0F Chevrolet - Drive Motor 1 Position Learn Incorrect - AutoCodes.com — P1B0F Chevrolet Code - Drive Motor 1 Position Learn Incorrect

What does this mean?

What are the Possible Causes of the DTC P1B0F Chevrolet?

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 P1B0F Chevrolet?

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 P1B0F Chevrolet 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 P1B0F Chevrolet Code

1. What are the common symptoms of OBDII code P1B0F in a Chevrolet related to Drive Motor 1 Position Learn Incorrect?

- Common symptoms include reduced electric vehicle performance, hybrid system warning lights on the dashboard, and potential drivability issues.

2. What can cause the OBDII code P1B0F in a Chevrolet related to Drive Motor 1 Position Learn Incorrect?

- The code can be triggered by issues such as faulty drive motor position sensors, damaged wiring harnesses, or software calibration errors.

3. How can I diagnose the OBDII code P1B0F related to Drive Motor 1 Position Learn Incorrect in my Chevrolet?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific code, checking the drive motor position sensor readings, and inspecting related wiring for any damage.

4. Is it safe to continue driving my Chevrolet with the OBDII code P1B0F related to Drive Motor 1 Position Learn Incorrect?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the hybrid system components.

5. How can I repair the OBDII code P1B0F related to Drive Motor 1 Position Learn Incorrect in my Chevrolet?

- Repair options may include replacing the faulty drive motor position sensors, repairing any damaged wiring, or performing a software recalibration to correct the position learn error.

6. Can a DIY enthusiast fix the OBDII code P1B0F related to Drive Motor 1 Position Learn Incorrect in a Chevrolet?

- While some basic troubleshooting like checking wiring connections can be done by a DIY enthusiast, resolving the root cause of the code may require professional diagnostic tools and expertise.

7. How much does it typically cost to repair the OBDII code P1B0F related to Drive Motor 1 Position Learn Incorrect in a Chevrolet?

- Repair costs can vary depending on the specific issue causing the code, but they may range from a few hundred to over a thousand dollars, including parts and labor.

8. Will resetting the OBDII code P1B0F related to Drive Motor 1 Position Learn Incorrect make it go away permanently?

- Simply clearing the code without addressing the underlying issue will likely result in the code reappearing once the system detects the fault again. It is essential to diagnose and repair the root cause.

9. Can extreme weather conditions or rough driving terrain trigger the OBDII code P1B0F related to Drive Motor 1 Position Learn Incorrect?

- While extreme conditions may not directly trigger the code, they can exacerbate existing issues with drive motor sensors or wiring, leading to the code being set.

10. Is the OBDII code P1B0F related to Drive Motor 1 Position Learn Incorrect a common issue in Chevrolet hybrid or electric vehicles?

- While not extremely common, this code can occur in Chevrolet hybrid or electric vehicles due to sensor malfunctions, wiring problems, or software calibration errors.