AutoCodes – Cadillac – P1B69 Cadillac

P1B69 Cadillac Code - Hybrid/Electric Vehicle Battery 45 Circuit Performance

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: P1B69 Cadillac indicates Hybrid/Electric Vehicle Battery 45 Circuit Performance.
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 884

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 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B69 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 P1B69 Cadillac - Hybrid/Electric Vehicle Battery 45 Circuit Performance - AutoCodes.com — P1B69 Cadillac Code - Hybrid/Electric Vehicle Battery 45 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1B69 Cadillac?

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

How to Fix the DTC P1B69 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 P1B69 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 P1B69 Cadillac Code

What does the OBDII code P1B69 indicate for a Cadillac?

The OBDII code P1B69 indicates a performance issue with the Hybrid/Electric Vehicle Battery 45 circuit, which can affect the overall performance of the hybrid system.

What are common symptoms of the P1B69 code?

Common symptoms include reduced power or acceleration, battery warning lights on the dashboard, and potential issues with the vehicleâ€™s hybrid system operation.

What can cause the P1B69 code to trigger?

The code can be triggered by issues such as a faulty battery management system, poor electrical connections, damaged wiring, or a malfunctioning hybrid battery pack.

How can I diagnose the P1B69 code?

To diagnose the P1B69 code, use an OBDII scanner to confirm the code and check for related codes, inspect the battery connections and wiring, and test the performance of the hybrid battery.

What are the potential repair options for a P1B69 code?

Repair options may include repairing or replacing damaged wiring, fixing poor electrical connections, recalibrating the battery management system, or replacing the hybrid battery if necessary.

Can I drive my Cadillac with the P1B69 code?

While you can technically drive the vehicle, it is not recommended as it may lead to reduced performance and can potentially cause further damage to the hybrid system.

How much does it typically cost to fix the P1B69 code?

Repair costs can vary widely, ranging from a simple wiring repair costing a few hundred dollars to several thousand dollars if the hybrid battery needs to be replaced.

Is the P1B69 code specific to Cadillac vehicles?

While the code P1B69 may appear in Cadillac vehicles, it is part of a broader set of codes related to hybrid systems and can be found in various hybrid and electric vehicles.

Should I clear the P1B69 code after repairs?

Yes, after repairing the issue, you should clear the code using an OBDII scanner and take the vehicle for a test drive to ensure the problem has been resolved and the code does not reappear.