AutoCodes – Generic – P3035

P3035 Code - Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit

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: P3035 indicates Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit.
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.

Save to My Repairs My Repairs

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

Code Popularity 1,381

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 Apr 27, 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 P3035 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 P3035 - Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit - AutoCodes.com — P3035 Code - Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit

What does this mean?

What are the Possible Causes of the DTC P3035?

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 P3035?

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 P3035 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 P3035 code?

Need more information on how to fix the P3035 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P3035 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P3035 Buick — Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit
P3035 Cadillac — Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit
P3035 Chevrolet — Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit
P3035 GMC — Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit

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 P3035 Code

1. What are the common symptoms of OBDII code P3035?

- Common symptoms of code P3035 include check engine light illumination, reduced hybrid/EV battery performance, and potential drivability issues.

2. What can cause the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit malfunction?

- The code P3035 can be triggered by issues such as a faulty battery interface control module, wiring problems, or a malfunctioning 5 V reference circuit.

3. How can I diagnose the cause of OBDII code P3035?

- To diagnose code P3035, it is recommended to perform a thorough inspection of the battery interface control module, check the wiring for any damage, and test the 5 V reference circuit for proper voltage output.

4. What are the potential dangers of ignoring OBDII code P3035?

- Ignoring code P3035 can lead to further damage to the hybrid/EV battery system, reduced fuel efficiency, and potential safety hazards while driving.

5. Can I drive my vehicle with OBDII code P3035 present?

- It is not recommended to drive your vehicle with code P3035 active, as it can affect the performance of the hybrid/EV system and may lead to more serious issues over time.

6. How can I repair OBDII code P3035 related to the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit?

- Repairing code P3035 may involve replacing the faulty battery interface control module, repairing any damaged wiring, or addressing issues with the 5 V reference circuit as needed.

7. Is it possible to reset OBDII code P3035 without fixing the underlying issue?

- While clearing the code may temporarily turn off the check engine light, it is crucial to address the root cause of P3035 to prevent further problems and ensure proper functioning of the hybrid/EV system.

8. How much does it typically cost to repair OBDII code P3035?

- The cost of repairing code P3035 can vary depending on the specific issue causing the malfunction, the labor rates of the repair shop, and the cost of any replacement parts needed.

9. Can a DIY enthusiast fix OBDII code P3035 at home?

- DIY enthusiasts with automotive repair experience may be able to address code P3035 at home by following diagnostic procedures, but complex issues may require professional assistance.

10. Are there any preventative maintenance tips to avoid OBDII code P3035 in the future?

- To prevent OBDII code P3035, regular maintenance of the hybrid/EV battery system, including checking wiring integrity and monitoring battery interface control module performance, can help detect issues early and prevent malfunctions.