AutoCodes – Saturn – P1B64 Saturn

P1B64 Saturn Code - Hybrid/Electric Vehicle Battery 43 Circuit Low 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: P1B64 Saturn indicates Hybrid/Electric Vehicle Battery 43 Circuit Low 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 856

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1B64 Saturn 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 P1B64 Saturn - Hybrid/Electric Vehicle Battery 43 Circuit Low Voltage - AutoCodes.com — P1B64 Saturn Code - Hybrid/Electric Vehicle Battery 43 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1B64 Saturn?

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

How to Fix the DTC P1B64 Saturn?

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 P1B64 Saturn 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.

Need more information about the P1B64 Saturn code?

Need more information on how to fix the P1B64 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1B64 Saturn code diagnosed by a professional: Find a repair shop in your area

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 P1B64 Saturn Code

1. What are the common symptoms of OBDII code P1B64 Saturn Hybrid/Electric Vehicle Battery 43 Circuit Low Voltage?

- Common symptoms include poor hybrid/electric vehicle performance, reduced fuel efficiency, and potential difficulty starting the vehicle.

2. What are the possible causes of code P1B64 Saturn Hybrid/Electric Vehicle Battery 43 Circuit Low Voltage?

- Causes may include a malfunctioning hybrid/electric vehicle battery, issues with the battery management system, or faulty wiring in the battery circuit.

3. How can I diagnose OBDII code P1B64 on my Saturn hybrid/electric vehicle?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the battery system for visible damage, and testing the battery voltage and connections.

4. Can I continue driving my Saturn with code P1B64 present?

- It is not recommended to continue driving your Saturn with this code present, as it can lead to further damage and potential safety hazards.

5. What are some repair tips for addressing code P1B64 Saturn Hybrid/Electric Vehicle Battery 43 Circuit Low Voltage?

- Repair tips may include checking and cleaning battery connections, testing and potentially replacing the hybrid/electric vehicle battery, and ensuring proper functioning of the battery management system.

6. How much does it typically cost to repair OBDII code P1B64 on a Saturn hybrid/electric vehicle?

- The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to a few thousand dollars, especially if the battery needs to be replaced.

7. Is it safe to attempt DIY repairs for code P1B64 Saturn Hybrid/Electric Vehicle Battery 43 Circuit Low Voltage?

- It is recommended to have a qualified technician or mechanic diagnose and repair this code, as working on hybrid/electric vehicle systems can be complex and potentially dangerous without proper training.

8. What are the long-term effects of ignoring OBDII code P1B64 on my Saturn hybrid/electric vehicle?

- Ignoring this code can lead to further damage to the hybrid/electric vehicle battery system, reduced vehicle performance, and potentially costly repairs down the line.

9. Can extreme weather conditions affect the occurrence of code P1B64 Saturn Hybrid/Electric Vehicle Battery 43 Circuit Low Voltage?

- Yes, extreme temperatures can impact the performance of hybrid/electric vehicle batteries and potentially trigger low voltage issues associated with this code.

10. How can I prevent OBDII code P1B64 from reoccurring on my Saturn hybrid/electric vehicle?

- Regular maintenance, keeping the hybrid/electric vehicle battery system in good condition, and addressing any issues promptly can help prevent the reoccurrence of this code.