AutoCodes – Saturn – P1B6A Saturn

P1B6A Saturn Code - Hybrid/Electric Vehicle Battery 45 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: P1B6A Saturn indicates Hybrid/Electric Vehicle Battery 45 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.

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Code Popularity 803

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 P1B6A 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 P1B6A Saturn - Hybrid/Electric Vehicle Battery 45 Circuit Low Voltage - AutoCodes.com — P1B6A Saturn Code - Hybrid/Electric Vehicle Battery 45 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1B6A Saturn?

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

How to Fix the DTC P1B6A 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 P1B6A 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.

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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 P1B6A Saturn Code

1. What are the common symptoms of OBDII code P1B6A in a Saturn Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid system performance, difficulty starting the vehicle, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P1B6A indicating Hybrid/Electric Vehicle Battery 45 Circuit Low Voltage in a Saturn?

- Possible causes may include a faulty battery pack, damaged wiring or connectors related to the battery circuit, or issues with the hybrid system control module.

3. How can I diagnose the OBDII code P1B6A in my Saturn Hybrid/Electric Vehicle?

- Diagnosis typically involves using a professional diagnostic scan tool to retrieve the specific fault code, inspecting the battery circuit components for damage, and testing the battery pack's voltage levels.

4. Can I repair OBDII code P1B6A in my Saturn Hybrid/Electric Vehicle myself?

- Repairing this code may require specialized knowledge and tools due to the complexity of hybrid/electric vehicle systems. It is recommended to consult a qualified technician for accurate diagnosis and repair.

5. What are the potential risks of driving with OBDII code P1B6A unresolved in a Saturn Hybrid/Electric Vehicle?

- Continuing to drive with this code unresolved may lead to further damage to the hybrid system components, reduced fuel efficiency, and potential safety hazards due to unreliable vehicle performance.

6. How much does it typically cost to repair OBDII code P1B6A in a Saturn Hybrid/Electric Vehicle?

- The cost of repair can vary depending on the exact cause of the code and the extent of the repairs needed. It is advisable to obtain quotes from reputable automotive shops or dealerships.

7. Are there any preventive maintenance tips to avoid OBDII code P1B6A in a Saturn Hybrid/Electric Vehicle?

- Regularly servicing the hybrid system, checking battery health, and addressing any warning signs promptly can help prevent issues leading to OBDII code P1B6A.

8. Can extreme weather conditions affect the likelihood of triggering OBDII code P1B6A in a Saturn Hybrid/Electric Vehicle?

- Yes, extreme temperatures can impact the performance and health of the hybrid/electric vehicle battery, potentially leading to issues like low voltage triggering the P1B6A code.

9. What steps should I take if OBDII code P1B6A returns after repair in my Saturn Hybrid/Electric Vehicle?

- If the code returns after repair, it may indicate an intermittent issue or a deeper underlying problem. Revisiting the diagnosis process and seeking professional assistance is recommended.

10. Is it safe to drive my Saturn Hybrid/Electric Vehicle with OBDII code P1B6A temporarily disabled or cleared?

- It is not recommended to drive the vehicle with the code cleared without addressing the underlying issue, as this may mask potential problems and compromise the safety and performance of the vehicle.