AutoCodes – GMC – P1E4B GMC

P1E4B GMC Code - Control Module Redundant Drive Motor 2 Speed Sensing Circuit

Quick Answer

The drive motor generator position sensor is monitored by the motor control module. Common causes include Program Power Inverter Module, Faulty Power Inverter Module, Power Inverter Module 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: P1E4B GMC indicates Control Module Redundant Drive Motor 2 Speed Sensing Circuit.
Common causes: Common causes include Program Power Inverter Module, Faulty Power Inverter Module, Power Inverter Module 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 695

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 Apr 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E4B GMC Description

The drive motor generator position sensor is monitored by the motor control module. The motor control module monitors the angular position, speed and direction of the drive motor generator based upon the signals of the resolver-type position sensor. The position sensor allows the motor control module to determine the exact position, speed and direction of the drive motor generator. The hybrid powertrain control module also calculates motor speed. This fault is handled inside the power inverter module, often referred to as the drive motor generator power inverter module, and no external circuits are involved.

OBDII Code P1E4B GMC - Control Module Redundant Drive Motor 2 Speed Sensing Circuit - AutoCodes.com — P1E4B GMC Code - Control Module Redundant Drive Motor 2 Speed Sensing Circuit

What does this mean?

What are the Possible Causes of the DTC P1E4B GMC?

Program Power Inverter Module
Faulty Power Inverter Module
Power Inverter Module harness is open or shorted
Power Inverter Module circuit poor electrical connection

How to Fix the DTC P1E4B 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 P1E4B 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 P1E4B GMC code?

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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 P1E4B GMC Code

1. What are the common symptoms of OBDII code P1E4B in a GMC vehicle?

- Common symptoms include poor acceleration, reduced power output, and possible illumination of the Check Engine Light.

2. What does the OBDII code P1E4B GMC indicate?

- The code P1E4B indicates a fault in the Control Module Redundant Drive Motor 2 Speed Sensing Circuit in a GMC vehicle.

3. What are the possible causes of OBDII code P1E4B GMC?

- Possible causes include a faulty drive motor, damaged wiring or connectors in the circuit, or a malfunctioning control module.

4. How can I diagnose the OBDII code P1E4B in my GMC vehicle?

- Diagnosis typically involves using a scan tool to retrieve the trouble code and then conducting a thorough inspection of the drive motor, circuit, and control module for any visible issues.

5. Can I drive my GMC vehicle with the OBDII code P1E4B present?

- It is not recommended to drive your vehicle with this code present, as it can lead to further damage and potential safety hazards.

6. How can I repair OBDII code P1E4B in my GMC vehicle?

- Repair may involve replacing the faulty drive motor, repairing or replacing damaged wiring or connectors, or reprogramming the control module as needed.

7. Is it safe to ignore the OBDII code P1E4B in my GMC vehicle?

- Ignoring the code can lead to performance issues and potential damage to other components, so it is best to address the underlying problem promptly.

8. Can a DIY enthusiast fix the OBDII code P1E4B issue in their GMC vehicle?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the issue, but professional help is recommended for accurate diagnosis and proper repair.

9. How much does it cost to repair the OBDII code P1E4B in a GMC vehicle?

- Repair costs can vary depending on the extent of the issue and the specific components that need to be replaced, but it is advisable to consult a mechanic for an accurate estimate.

10. How can I prevent OBDII code P1E4B from recurring in my GMC vehicle?

- Regular maintenance, such as checking the drive motor and circuit for any signs of wear or damage, can help prevent the recurrence of this code.