AutoCodes – Generic – P1E98

P1E98 Code - Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit

Quick Answer

To maintain a similar state of charge on the cell groups, the hybrid/EV powertrain control module 2 looks at the cell group voltages and determines which cell groups need energy removed in order to maintain the battery groups at a similar state of charge. Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control 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: P1E98 indicates Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit.
Common causes: Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control 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 1,022

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 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E98 Description

To maintain a similar state of charge on the cell groups, the hybrid/EV powertrain control module 2 looks at the cell group voltages and determines which cell groups need energy removed in order to maintain the battery groups at a similar state of charge. This is known as cell balancing. There is a resistor wired in parallel with the cell group and a transistor switch in series with the resistor internal to the hybrid/EV battery interface control module. The hybrid/EV powertrain control module 2 sends a command to the hybrid/EV battery energy control module to begin cell balancing through the hybrid/EV battery interface control modules.

OBDII Code P1E98 - Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit - AutoCodes.com — P1E98 Code - Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit

What does this mean?

What are the Possible Causes of the DTC P1E98?

Faulty Hybrid/EV Battery Interface Control Module
Hybrid/EV Battery Interface Control Module harness is open or shorted
Hybrid/EV Battery Interface Control Module circuit poor electrical connection

How to Fix the DTC P1E98?

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 P1E98 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 P1E98 code?

Need more information on how to fix the P1E98 code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

P1E98 Buick — Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit
P1E98 Cadillac — Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit
P1E98 Chevrolet — Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit
P1E98 GMC — Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit
P1E98 Saturn — Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit

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 P1E98 Code

1. What does OBDII code P1E98 mean?

P1E98 indicates an issue with the Hybrid/EV Battery Interface Control Module 2, specifically related to the cell balancing circuit.

2. What are the common symptoms of code P1E98?

Symptoms may include reduced fuel efficiency, a warning light on the dashboard, limited electric drive performance, or failure to charge the hybrid/EV battery fully.

3. What causes the P1E98 code to appear?

The code can be triggered by a faulty cell balancing circuit, damaged wiring, poor electrical connections, or a malfunctioning control module.

4. Can I drive my vehicle with a P1E98 code?

Itâ€™s not recommended, as the code indicates a problem with the battery management system that could lead to further damage or reduced performance.

5. How is the P1E98 code diagnosed?

A technician will use a scan tool to read the code, inspect the battery interface control moduleâ€™s circuits, check for faulty wiring, and test the module's functionality.

6. What repairs are needed to fix code P1E98?

Repairs may include replacing the battery interface control module, repairing or replacing damaged wiring, or addressing faulty connections in the circuit.

7. How much does it cost to fix a P1E98 code?

Repair costs vary but can range from $500 to $1,500 depending on whether the module needs replacement and labor costs.

8. Can a software update fix the P1E98 code?

In some cases, a software update for the control module might resolve the issue if itâ€™s caused by a system calibration error.

9. How can I prevent the P1E98 code from reoccurring?

Regular maintenance, inspecting electrical connections, and addressing battery issues promptly can help prevent the code.

10. Is the P1E98 code specific to certain vehicle models?

This code is most common in hybrid and electric vehicles from manufacturers like GM, but it can vary depending on the specific vehicle and its battery management system.