AutoCodes – Generic – P1E9D

P1E9D Code - Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance

Quick Answer

The hybrid battery interface control module 3 will diagnose its own systems and determine when a fault condition is present. Common causes include Faulty Hybrid/EV Battery Interface Control Module 3, Hybrid/EV Battery Interface Control Module 3 harness is open or shorted, Hybrid/EV Battery Interface Control Module 3 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: P1E9D indicates Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance.
Common causes: Common causes include Faulty Hybrid/EV Battery Interface Control Module 3, Hybrid/EV Battery Interface Control Module 3 harness is open or shorted, Hybrid/EV Battery Interface Control Module 3 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 894

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 P1E9D Description

The hybrid battery interface control module 3 will diagnose its own systems and determine when a fault condition is present. This diagnostic applies to internal microprocessor integrity conditions within the hybrid battery interface control module 3. This fault is internal to the hybrid battery interface control module 3 and no external circuits are involved.

OBDII Code P1E9D - Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance - AutoCodes.com — P1E9D Code - Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance

What does this mean?

What are the Possible Causes of the DTC P1E9D?

Faulty Hybrid/EV Battery Interface Control Module 3
Hybrid/EV Battery Interface Control Module 3 harness is open or shorted
Hybrid/EV Battery Interface Control Module 3 circuit poor electrical connection

How to Fix the DTC P1E9D?

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 P1E9D 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 P1E9D code?

Need more information on how to fix the P1E9D code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

P1E9D Buick — Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance
P1E9D Cadillac — Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance
P1E9D Chevrolet — Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance
P1E9D GMC — Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance
P1E9D Saturn — Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance

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 P1E9D Code

What does the OBDII code P1E9D mean?

The P1E9D code indicates an issue with the performance of the long-term memory in Hybrid/EV Battery Interface Control Module 3, which manages battery system data storage and retrieval.

What are the common symptoms of the P1E9D code?

Common symptoms include warning lights on the dashboard, reduced hybrid or EV performance, poor fuel efficiency, or limited battery functionality.

What causes the P1E9D code to appear?

The code can be triggered by corrupted memory in the control module, software glitches, low battery voltage, or a failing Hybrid/EV Battery Interface Control Module.

Can I drive my vehicle with the P1E9D code?

While the vehicle may still be drivable, ignoring the code could lead to reduced efficiency or further damage to the hybrid/EV battery system. Prompt diagnosis is recommended.

How is the P1E9D code diagnosed?

A technician will use a scan tool to retrieve the code, inspect the battery control module, check for software updates, and test the battery system's voltage and connections.

Can the P1E9D code be fixed by resetting the system?

In some cases, resetting the system or updating the module's software may temporarily clear the code, but the underlying issue should be addressed to prevent recurrence.

Do I need to replace the Hybrid/EV Battery Interface Control Module to fix the P1E9D code?

Not always; the issue may be resolved with a software update, recalibration, or repairing wiring and connections. Replacement is only required if the module is confirmed to be faulty.

What is the cost to repair the P1E9D code?

Repair costs can vary widely, ranging from $100 for diagnostics or software updates to over $1,000 if the control module needs replacement.

Can a low 12-volt battery cause the P1E9D code?

Yes, a weak or failing 12-volt battery can cause voltage irregularities, potentially triggering this code. Ensure the 12-volt battery is in good condition.

How do I prevent the P1E9D code from recurring?

Regular maintenance, keeping the 12-volt battery charged, and ensuring the control module software is up to date can help prevent this code from recurring.