AutoCodes – GMC – P3035 GMC

P3035 GMC 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 GMC 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.

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Code Popularity 1,521

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
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Code P3035 GMC 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 GMC - Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit - AutoCodes.com — P3035 GMC 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 GMC?

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 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 P3035 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 P3035 GMC Code

1. What are the common symptoms of OBDII code P3035 in a GMC vehicle related to the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit?

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

2. What are the possible causes of OBDII code P3035 related to the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit in a GMC vehicle?

- Causes can include a faulty hybrid/EV battery interface control module, wiring issues, poor electrical connections, or a malfunctioning 11 5 V reference circuit.

3. How can I diagnose OBDII code P3035 in my GMC vehicle linked to the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit?

- Diagnosis typically involves using a scan tool to retrieve the code, performing visual inspections of wiring and connectors, testing the 11 5 V reference circuit, and checking the hybrid/EV battery interface control module.

4. Can OBDII code P3035 related to the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit be repaired at home?

- Repairing this code may require advanced diagnostic tools and expertise, so it is recommended to consult a professional mechanic with experience in hybrid/EV systems.

5. Is it safe to continue driving with OBDII code P3035 in a GMC vehicle affecting the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit?

- It is not advisable to ignore this code, as it can lead to further damage to the hybrid/EV system. It is recommended to address the issue promptly.

6. How much does it typically cost to repair OBDII code P3035 concerning the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit in a GMC vehicle?

- Repair costs can vary depending on the exact cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

7. Are there any preventive measures to avoid encountering OBDII code P3035 related to the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit in a GMC vehicle?

- Regular maintenance checks, including inspections of the hybrid/EV system, can help detect potential issues early and prevent the occurrence of this code.

8. Can a low or failing hybrid/EV battery cause OBDII code P3035 to trigger in a GMC vehicle with the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit?

- While a low or failing hybrid/EV battery can contribute to electrical system issues, the specific trigger for OBDII code P3035 is typically related to the control module or reference circuit.

9. How long does it usually take to repair OBDII code P3035 affecting the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit in a GMC vehicle?

- Repair times can vary based on the complexity of the issue and the availability of parts. It may take a few hours to a day or more to diagnose and repair this code.

10. Can resetting the vehicle's computer system clear OBDII code P3035 associated with the Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit in a GMC vehicle?

- Resetting the computer system may temporarily clear the code, but it is important to address the underlying issue causing the code to prevent it from reoccurring.