AutoCodes – Chevrolet – P1BAD Chevrolet

P1BAD Chevrolet Code - Hybrid/Electric Vehicle Battery 67 Circuit High Voltage

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: P1BAD Chevrolet indicates Hybrid/Electric Vehicle Battery 67 Circuit High Voltage.
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 940

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 P1BAD Chevrolet 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 P1BAD Chevrolet - Hybrid/Electric Vehicle Battery 67 Circuit High Voltage - AutoCodes.com — P1BAD Chevrolet Code - Hybrid/Electric Vehicle Battery 67 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BAD Chevrolet?

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

How to Fix the DTC P1BAD Chevrolet?

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 P1BAD Chevrolet 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 P1BAD Chevrolet Code

1. What are the common symptoms of OBDII code P1BAD in a Chevrolet Hybrid/Electric Vehicle?

- Common symptoms include the illumination of the check engine light, reduced vehicle performance, and potential issues with the hybrid/electric battery system.

2. What does the OBDII code P1BAD Chevrolet Hybrid/Electric Vehicle Battery 67 Circuit High Voltage indicate?

- This code indicates a high voltage condition in the hybrid/electric vehicle battery's 67 circuit, which can lead to various electrical and performance issues.

3. What are the possible causes of OBDII code P1BAD in a Chevrolet Hybrid/Electric Vehicle?

- Possible causes include a faulty hybrid/electric battery, issues with the battery management system, damaged wiring or connectors in the 67 circuit, or a malfunctioning battery control module.

4. How can I diagnose the source of OBDII code P1BAD in my Chevrolet Hybrid/Electric Vehicle?

- To diagnose the issue, it is recommended to perform a thorough inspection of the hybrid/electric battery system, check the wiring and connectors in the 67 circuit, and use a diagnostic scan tool to gather more information.

5. Can I still drive my Chevrolet Hybrid/Electric Vehicle with OBDII code P1BAD present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the hybrid/electric battery system and potentially compromise vehicle safety.

6. What are some repair tips for addressing OBDII code P1BAD in a Chevrolet Hybrid/Electric Vehicle?

- Repair tips may include inspecting and repairing any damaged wiring or connectors in the 67 circuit, testing and potentially replacing the hybrid/electric battery, and resetting the fault code after repairs are made.

7. Is it safe to attempt to repair OBDII code P1BAD in a Chevrolet Hybrid/Electric Vehicle without professional assistance?

- Due to the complex nature of hybrid/electric vehicle systems and high voltage components, it is recommended to seek professional assistance from a certified technician when dealing with this code.

8. How much does it typically cost to repair OBDII code P1BAD in a Chevrolet Hybrid/Electric Vehicle?

- The cost of repairs can vary depending on the exact cause of the code, but it may involve parts replacement, diagnostic labor, and potentially reprogramming or recalibrating the battery control module.

9. Can OBDII code P1BAD in a Chevrolet Hybrid/Electric Vehicle be prevented in the future?

- Regular maintenance of the hybrid/electric battery system, keeping an eye on warning signs or symptoms, and addressing any issues promptly can help prevent the occurrence of this code in the future.

10. Are there any recalls or technical service bulletins related to OBDII code P1BAD in Chevrolet Hybrid/Electric Vehicles?

- It is recommended to check with Chevrolet dealerships or the manufacturer's website for any relevant recalls or technical service bulletins related to this specific OBDII code in Chevrolet Hybrid/Electric Vehicles.