AutoCodes – Cadillac – P1E98 Cadillac

P1E98 Cadillac 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 Cadillac 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 753

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

What does this mean?

What are the Possible Causes of the DTC P1E98 Cadillac?

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 Cadillac?

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 Cadillac 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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Need Help with the 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 P1E98 Cadillac Code

1. What are the common symptoms of OBDII code P1E98 in a Cadillac Hybrid/EV?

- Common symptoms include decreased hybrid system performance, reduced fuel efficiency, and potential battery charging issues.

2. What does the Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit do?

- The module is responsible for ensuring the proper balance of cells within the hybrid/EV battery, optimizing performance and longevity.

3. What can cause the P1E98 code to trigger in a Cadillac?

- The code may be triggered by a malfunction in the Cell Balancing Circuit, a faulty battery cell, or issues with the Hybrid/EV Battery Interface Control Module 2.

4. How can I diagnose the cause of OBDII code P1E98 in my Cadillac Hybrid/EV?

- Diagnosing the issue may require a professional scan tool to check for specific battery cell imbalances, circuit malfunctions, or module errors.

5. Can I continue driving my Cadillac with the P1E98 code present?

- It is not recommended to continue driving with the code present, as it can lead to further damage to the hybrid/EV system and reduce overall vehicle performance.

6. Is it possible to repair the Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit myself?

- Due to the complexity of hybrid/EV systems, it is recommended to have a qualified technician diagnose and repair any issues related to the Cell Balancing Circuit.

7. How much does it typically cost to repair OBDII code P1E98 in a Cadillac Hybrid/EV?

- Repair costs can vary depending on the exact cause of the issue, but expect to budget for diagnostic fees, parts replacement, and labor costs.

8. Are there any maintenance tips to prevent the P1E98 code from recurring in my Cadillac?

- Regular maintenance, including monitoring battery health, ensuring proper charging habits, and addressing any warning lights promptly, can help prevent issues with the Cell Balancing Circuit.

9. Can the OBDII code P1E98 be a recurring problem in Cadillac Hybrid/EV vehicles?

- If the root cause of the code is not properly addressed, it can recur over time, potentially leading to more significant issues with the hybrid/EV system.

10. How long does it typically take to repair the Hybrid/EV Battery Interface Control Module 2 Cell Balancing Circuit?

- Repair times can vary depending on the extent of the issue and availability of parts, but it is recommended to consult with a professional technician for a more accurate estimate.