AutoCodes – GMC – P1BAD GMC

P1BAD GMC 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 GMC 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 1,016

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

What does this mean?

What are the Possible Causes of the DTC P1BAD GMC?

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

How to Fix the DTC P1BAD GMC?

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 GMC 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 GMC Code

1. What are common symptoms of OBDII code P1BAD GMC related to the Hybrid/Electric Vehicle Battery 67 Circuit High Voltage?

- Common symptoms include reduced hybrid/electric vehicle performance, illuminated warning lights on the dashboard, and potential difficulty starting the vehicle.

2. What are the possible causes of OBDII code P1BAD GMC indicating Hybrid/Electric Vehicle Battery 67 Circuit High Voltage?

- The code may be triggered by issues such as a faulty high voltage battery pack, damaged wiring in the battery circuit, or a malfunctioning battery management system.

3. How can I diagnose the underlying issue causing OBDII code P1BAD GMC related to the Hybrid/Electric Vehicle Battery 67 Circuit High Voltage?

- Diagnosing this code often requires specialized diagnostic equipment and knowledge of hybrid/electric vehicle systems. It is recommended to consult a qualified technician or dealership for accurate diagnosis.

4. Can I continue driving my vehicle with OBDII code P1BAD GMC pointing to Hybrid/Electric Vehicle Battery 67 Circuit High Voltage?

- It is not advisable to continue driving the vehicle when this code is present, as it can indicate potential high voltage safety risks and may lead to further damage if ignored.

5. What are some repair tips for addressing OBDII code P1BAD GMC associated with Hybrid/Electric Vehicle Battery 67 Circuit High Voltage?

- Repair tips may include checking and repairing damaged wiring, inspecting the high voltage battery pack for faults, and ensuring proper functioning of the battery management system.

6. Is it safe to attempt DIY repairs for OBDII code P1BAD GMC linked to Hybrid/Electric Vehicle Battery 67 Circuit High Voltage?

- Due to the high voltage nature of hybrid/electric vehicle systems, DIY repairs are not recommended. It is best to seek professional help from experienced technicians for safety and accuracy.

7. How much does it typically cost to repair OBDII code P1BAD GMC related to Hybrid/Electric Vehicle Battery 67 Circuit High Voltage?

- Repair costs can vary depending on the underlying issue, parts needed, and labor involved. It is advisable to get a diagnostic assessment from a reputable service center for an accurate cost estimate.

8. Can a low or weak hybrid/electric vehicle battery cause OBDII code P1BAD GMC indicating Hybrid/Electric Vehicle Battery 67 Circuit High Voltage?

- While a low or weak battery may not directly trigger this specific code, it can contribute to overall hybrid/electric vehicle performance issues that may lead to related faults.

9. Are there any preventive maintenance measures to avoid encountering OBDII code P1BAD GMC related to Hybrid/Electric Vehicle Battery 67 Circuit High Voltage?

- Regular maintenance of the high voltage battery system, including inspections and servicing as per manufacturer recommendations, can help prevent issues that may trigger this code.

10. How urgent is it to address OBDII code P1BAD GMC associated with Hybrid/Electric Vehicle Battery 67 Circuit High Voltage?

- It is recommended to address this code promptly to prevent potential safety hazards, further damage to the vehicle's electrical system, and to maintain optimal hybrid/electric vehicle performance.