AutoCodes – GMC – P1B53 GMC

P1B53 GMC Code - Hybrid/Electric Vehicle Battery 37 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: P1B53 GMC indicates Hybrid/Electric Vehicle Battery 37 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 1,545

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 09, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B53 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 P1B53 GMC - Hybrid/Electric Vehicle Battery 37 Circuit High Voltage - AutoCodes.com — P1B53 GMC Code - Hybrid/Electric Vehicle Battery 37 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B53 GMC?

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

How to Fix the DTC P1B53 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 P1B53 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 P1B53 GMC Code

1. What are the common symptoms of OBDII code P1B53 GMC related to the Hybrid/Electric Vehicle Battery 37 Circuit High Voltage?

- Common symptoms include poor fuel economy, reduced engine performance, and potential issues with the hybrid/electric system.

2. What are the possible causes of OBDII code P1B53 GMC indicating Hybrid/Electric Vehicle Battery 37 Circuit High Voltage?

- Possible causes may include a malfunctioning battery pack, faulty high voltage wiring, or problems with the battery control module.

3. How can I diagnose OBDII code P1B53 GMC for the Hybrid/Electric Vehicle Battery 37 Circuit High Voltage?

- Diagnosis typically involves using a scan tool to read the code, inspecting the high voltage system components, and conducting tests to pinpoint the exact issue.

4. Is it safe to drive with OBDII code P1B53 GMC triggered for the Hybrid/Electric Vehicle Battery 37 Circuit High Voltage?

- It is not recommended to drive with this code active, as it may lead to further damage to the hybrid/electric system and potentially unsafe driving conditions.

5. What are some repair tips for addressing OBDII code P1B53 GMC related to the Hybrid/Electric Vehicle Battery 37 Circuit High Voltage?

- Repair tips may include checking and repairing any damaged wiring, replacing the battery pack if necessary, and ensuring proper connections in the high voltage system.

6. Can OBDII code P1B53 GMC be reset without addressing the underlying issue with the Hybrid/Electric Vehicle Battery 37 Circuit High Voltage?

- While the code can be cleared, it is important to address the root cause of the issue to prevent it from recurring and potentially causing more significant problems.

7. How much does it typically cost to repair OBDII code P1B53 GMC for the Hybrid/Electric Vehicle Battery 37 Circuit High Voltage?

- Repair costs can vary depending on the exact cause of the issue, but they may range from a few hundred to a few thousand dollars, especially if components like the battery pack need replacement.

8. Are there any recalls or technical service bulletins related to OBDII code P1B53 GMC in GMC hybrid/electric vehicles?

- It is advisable to check with a GMC dealership or the manufacturer's website for any recalls or technical service bulletins specific to this OBDII code and related issues in hybrid/electric vehicles.

9. How often should I have the high voltage system in my GMC hybrid/electric vehicle inspected to prevent OBDII code P1B53 GMC from occurring?

- It is recommended to have the high voltage system inspected regularly as part of routine maintenance to detect any potential issues early and avoid triggering OBDII code P1B53 GMC.

10. Can a DIY enthusiast with knowledge of hybrid/electric vehicle systems repair OBDII code P1B53 GMC for the Hybrid/Electric Vehicle Battery 37 Circuit High Voltage?

- While some basic inspections and repairs may be possible for experienced DIY enthusiasts, dealing with high voltage systems and complex components may require professional expertise to safely and effectively address the issue.