AutoCodes – Chevrolet – P1E4A Chevrolet

P1E4A Chevrolet Code - Control Module Redundant Drive Motor 1 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: P1E4A Chevrolet indicates Control Module Redundant Drive Motor 1 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 922

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 P1E4A Chevrolet 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 P1E4A Chevrolet - Control Module Redundant Drive Motor 1 Speed Sensing Circuit - AutoCodes.com — P1E4A Chevrolet Code - Control Module Redundant Drive Motor 1 Speed Sensing Circuit

What does this mean?

What are the Possible Causes of the DTC P1E4A Chevrolet?

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 P1E4A 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 P1E4A 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.

Need more information about the P1E4A Chevrolet 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 P1E4A Chevrolet Code

1. What does the OBDII code P1E4A mean on a Chevrolet?

The P1E4A code indicates an issue with the Control Module Redundant Drive Motor 1 Speed Sensing Circuit, which monitors the speed of the drive motor in hybrid or electric vehicles.

2. What are the common symptoms of the P1E4A code?

Symptoms may include the check engine light turning on, reduced vehicle performance, or limited functionality of the electric/hybrid drive system.

3. What causes the P1E4A code to appear?

Common causes include a faulty speed sensor, damaged wiring or connectors in the speed sensing circuit, or an issue with the drive motor control module.

4. Can the P1E4A code cause drivability issues?

Yes, it can lead to reduced performance, limited electric drive usage, or the vehicle entering limp mode to protect the system.

5. How is the P1E4A code diagnosed?

Diagnosis involves scanning the vehicle with an OBDII tool, inspecting the speed sensor and related wiring, and testing the drive motor control module for faults.

6. Is the P1E4A code specific to Chevrolet hybrid or electric vehicles?

Yes, this code is typically found in Chevrolet hybrid or electric vehicles, as it relates to the drive motor speed sensing circuit.

7. Can I drive my Chevrolet with the P1E4A code?

Itâ€™s not recommended to drive the vehicle extensively with this code, as it may lead to further damage or reduced safety.

8. What repairs are needed to fix the P1E4A code?

Repairs may include replacing the faulty speed sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the drive motor control module.

9. Can a software update fix the P1E4A code?

In some cases, a software update for the drive motor control module may resolve the issue, but this depends on the root cause.

10. How much does it cost to repair the P1E4A code?

Repair costs vary depending on the exact issue, but they can range from $100 for sensor replacement to over $1,000 if the drive motor control module needs replacing.