AutoCodes – Saturn – P3043 Saturn

P3043 Saturn Code - Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit Low Voltage

Quick Answer

The hybrid battery contains 192 individual cells. Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control Module circuit poor electrical connection. 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
P3043 Saturn indicates Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control Module circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,055
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 16, 2019
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P3043 Saturn Description

The hybrid battery contains 192 individual cells. Two cells are welded together in parallel and called a cell group. There are a total of 96 cell groups in the hybrid battery 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 cell groups are joined to form 3 distinct sections. The first 24 battery cell groups make up battery section 1. This section is adjacent to the cowl and contains battery cell groups 73 through 96. The next 28 battery cell groups make up battery section 2. This section is located behind section 1 and contains battery cell groups 45 through 72. The transverse battery section is section number 3 and it contains the remaining 44 battery cell groups 1 through 44. The battery sections also contain two temperature sensors, with one sensor located at each end of the section.
The battery energy control module monitors the voltage of the 96 battery cell groups. The voltage sense lines are attached to each individual cell group, and these sense lines terminate at a connector located on the top surface of the battery section. A voltage sense harness joins this connector to the battery energy control module.
The battery energy control module contains internal interface control modules that monitor specific cell groups.
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 the hybrid powertrain control module 2 through serial data. The hybrid powertrain control module 2 is the host controller for diagnostic trouble code information.
OBDII Code P3043 Saturn - Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit Low Voltage - AutoCodes.com
P3043 Saturn Code - Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit Low Voltage

What are the Possible Causes of the DTC P3043 Saturn?

  • Faulty Hybrid/EV Battery Interface Control Module
  • Hybrid/EV Battery Interface Control Module harness is open or shorted
  • Hybrid/EV Battery Interface Control Module circuit poor electrical connection

How to Fix the DTC P3043 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 P3043 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 P3043 Saturn code?

Need more information on how to fix the P3043 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P3043 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 P3043 Saturn Code

1. What are common symptoms of OBDII code P3043 in a Saturn hybrid/EV vehicle?

- Common symptoms include loss of power, poor fuel efficiency, and an illuminated check engine light.

2. What can cause the Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit to report low voltage?

- Possible causes include a faulty voltage sensor, battery issues, wiring problems, or a malfunctioning control module.

3. How can I diagnose the source of the low voltage issue triggering code P3043 in my Saturn?

- A diagnostic scan tool can help pinpoint the exact cause by providing live data readings and identifying specific system components.

4. Is it safe to continue driving my Saturn with the P3043 code triggered?

- It is not recommended to drive the vehicle with this code active, as it can lead to further damage to the hybrid/EV system.

5. What steps can I take to repair the Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit low voltage issue?

- Repair steps may include checking and replacing the voltage sensor, inspecting the battery connections, and verifying the wiring integrity.

6. Can a DIY enthusiast fix the P3043 code issue in a Saturn, or is professional help required?

- While some basic troubleshooting steps can be performed by DIYers, complex electrical repairs may require professional assistance.

7. How critical is it to address the P3043 code in a timely manner?

- Promptly addressing the issue is crucial to prevent further damage to the hybrid/EV system and maintain optimal vehicle performance.

8. Are there any preventative maintenance tips to avoid encountering the P3043 code in a Saturn hybrid/EV vehicle?

- Regularly inspecting the battery system, keeping connections clean and secure, and following the manufacturer's maintenance schedule can help prevent issues.

9. Can a low battery charge trigger the P3043 code in a Saturn hybrid/EV model?

- Yes, a low battery charge or a weak battery can contribute to triggering the P3043 code due to insufficient voltage levels.

10. How long does it typically take to repair the Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit low voltage issue?

- The repair time can vary depending on the exact cause of the issue, but it may take a few hours to a day for diagnosis and repairs to be completed.

Discuss the causes and fixes for P3043 Saturn OBDII Code

Code P3043 Saturn comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play