AutoCodes – Cadillac – P1E68 Cadillac

P1E68 Cadillac Code - Hybrid/Electric Vehicle Battery 61 Circuit

Quick Answer

The Hybrid/Electric Vehicle battery pack contains 288 cells. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module. 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: P1E68 Cadillac indicates Hybrid/Electric Vehicle Battery 61 Circuit.
Common causes: Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module.
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 872

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 Mar 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E68 Cadillac Description

The Hybrid/Electric Vehicle battery pack contains 288 cells. Groups of three cells are welded together in parallel. There are a total of 96 cell groups in the hybrid/EV battery pack assembly. These cell groups are electrically connected in-series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V direct current. The battery cells are also grouped together into three sections. The first 90 cells/30 cell groups make up battery section one. This section is adjacent to the cowl and contains batteries 67 through to 96. Battery section two is located behind section one. It is made up of 72 cells/24 cell groups and contains batteries 43 through to 66. The transverse battery section is section number three, it is made up of the remaining 126 cells/42 cell groups and contains batteries 1 through to 42. The three battery sections are individually serviceable components.
The battery energy control module monitors the voltage of the 96 battery cell groups through the four hybrid/EV battery interface control modules. Voltage sense circuits are attached to each individual cell group, and these sense circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness joins this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P1E68 Cadillac - Hybrid/Electric Vehicle Battery 61 Circuit - AutoCodes.com — P1E68 Cadillac Code - Hybrid/Electric Vehicle Battery 61 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E68 Cadillac?

Faulty Hybrid/Electric Vehicle Battery Pack
Faulty Hybrid/Electric Vehicle Battery Interface Control Module

How to Fix the DTC P1E68 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 P1E68 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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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 P1E68 Cadillac Code

1. What are the common symptoms of OBDII code P1E68 in a Cadillac hybrid/electric vehicle?

- Common symptoms include reduced hybrid system performance, difficulty starting the vehicle, and potential illumination of the hybrid system warning light.

2. What could be the possible causes of OBDII code P1E68 in a Cadillac hybrid/electric vehicle?

- The code P1E68 typically indicates a fault in the Hybrid/Electric Vehicle Battery 61 Circuit, which can be caused by issues such as battery pack failure, damaged wiring, or a faulty battery management system.

3. How can I diagnose the OBDII code P1E68 in my Cadillac hybrid/electric vehicle?

- Diagnosis often involves using a professional OBDII scanner to retrieve the specific fault code, conducting a visual inspection of the battery components and wiring, and performing a battery health check using specialized tools.

4. What are some repair tips for addressing OBDII code P1E68 in a Cadillac hybrid/electric vehicle?

- Repair tips may include checking and repairing damaged wiring, replacing the hybrid/electric vehicle battery if necessary, resetting the fault code, and ensuring proper calibration of the battery management system.

5. Can I continue driving my Cadillac with OBDII code P1E68 present?

- It is not recommended to continue driving the vehicle with the code P1E68 present, as it can lead to further damage to the hybrid system components and potentially cause safety hazards.

6. How much does it typically cost to repair OBDII code P1E68 in a Cadillac hybrid/electric vehicle?

- Repair costs for OBDII code P1E68 can vary depending on the extent of the issue, but they may range from a few hundred to a few thousand dollars, especially if the hybrid/electric vehicle battery needs to be replaced.

7. Are there any preventive maintenance measures to avoid OBDII code P1E68 in a Cadillac hybrid/electric vehicle?

- Regularly monitoring the health of the hybrid/electric vehicle battery, following manufacturer-recommended maintenance schedules, and addressing any warning signs promptly can help prevent issues that may trigger the code P1E68.

8. Can a DIY enthusiast attempt to fix OBDII code P1E68 in a Cadillac hybrid/electric vehicle?

- While some basic troubleshooting steps can be performed by DIY enthusiasts, addressing OBDII code P1E68 often requires specialized tools, knowledge, and training best left to professional technicians familiar with hybrid/electric vehicle systems.

9. How long does it take to repair OBDII code P1E68 in a Cadillac hybrid/electric vehicle?

- The repair time for OBDII code P1E68 can vary depending on the complexity of the issue and the availability of replacement parts. In some cases, repairs may be completed within a few hours to a day.

10. Is it necessary to reset the OBDII code P1E68 after repairing the issue in a Cadillac hybrid/electric vehicle?

- Yes, it is important to reset the OBDII code P1E68 after repairing the underlying issue to clear the fault code from the system's memory and ensure that the repair was successful.