AutoCodes – Chevrolet – P1A35 Chevrolet

P1A35 Chevrolet Code - Hybrid Battery 3 Voltage Very Low

Quick Answer

Battery voltage sensors allow the Energy Storage Control Module (ESCM) to monitor the voltage of the batteries in the Energy Storage Box (ESB). Common causes include Faulty Energy Storage Box (ESB) Battery, Faulty Battery Energy Control Module (BECM), Battery Energy Control Module (BECM) harness is open or shorted. 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: P1A35 Chevrolet indicates Hybrid Battery 3 Voltage Very Low.
Common causes: Common causes include Faulty Energy Storage Box (ESB) Battery, Faulty Battery Energy Control Module (BECM), Battery Energy Control Module (BECM) harness is open or shorted.
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 930

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 Feb 15, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1A35 Chevrolet Description

Battery voltage sensors allow the Energy Storage Control Module (ESCM) to monitor the voltage of the batteries in the Energy Storage Box (ESB). The batteries apply voltage to internal input resistors that are connected to the signal circuits of the battery voltage sensors. The module provides ground to the battery voltage sensors through the reference circuit. The ESCM monitors the voltage drop across the battery voltage sensors and uses the inputs for hybrid calculations. When the battery voltage is high, the resistances of the sensors are high and the voltage signals are high. When the battery voltage is low, the resistances of the sensors are low and the voltage signals are low.

OBDII Code P1A35 Chevrolet - Hybrid Battery 3 Voltage Very Low - AutoCodes.com — P1A35 Chevrolet Code - Hybrid Battery 3 Voltage Very Low

What does this mean?

What are the Possible Causes of the DTC P1A35 Chevrolet?

Faulty Energy Storage Box (ESB) Battery
Faulty Battery Energy Control Module (BECM)
Battery Energy Control Module (BECM) harness is open or shorted
Battery Energy Control Module (BECM) circuit poor electrical connection

How to Fix the DTC P1A35 Chevrolet?

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 P1A35 Chevrolet 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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Need Help with the Code?

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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 P1A35 Chevrolet Code

1. What does the OBDII code P1A35 mean for a Chevrolet?

The code P1A35 indicates "Hybrid Battery 3 Voltage Very Low," which means one section of the hybrid battery is reporting a voltage significantly lower than expected.

2. What are the symptoms of the P1A35 code in a Chevrolet?

Symptoms may include warning lights on the dashboard, reduced hybrid system performance, poor fuel efficiency, or the vehicle operating solely on the internal combustion engine.

3. What causes the P1A35 code on a Chevrolet hybrid vehicle?

Common causes include a failed hybrid battery cell, wiring or connector issues, or a malfunctioning battery voltage sensor.

4. Can driving with the P1A35 code damage my Chevrolet?

Continuing to drive with this code may strain the hybrid system and cause further damage to the battery or related components.

5. How is the P1A35 code diagnosed in a Chevrolet?

Technicians use a scan tool to monitor individual battery module voltages and inspect wiring, sensors, and connectors for faults.

6. Can the P1A35 code be fixed without replacing the hybrid battery?

In some cases, repairing or replacing faulty wiring, connectors, or sensors may resolve the issue, but replacing the affected battery module is often required.

7. How much does it cost to repair the P1A35 code on a Chevrolet?

Repair costs vary widely depending on whether the issue is with a single battery module, wiring, or the entire battery pack, ranging from a few hundred to several thousand dollars.

8. What tools are needed to troubleshoot the P1A35 code on a Chevrolet?

A diagnostic scan tool capable of reading hybrid system data, a multimeter for electrical tests, and tools for visual inspections are essential.

9. Is the P1A35 code covered under warranty for Chevrolet vehicles?

Hybrid battery warranties typically cover defects for 8-10 years or 100,000 miles, but coverage depends on the vehicle's age and mileage.

10. Should I take my Chevrolet to a dealership or independent shop for the P1A35 code?

A dealership may be better equipped to handle hybrid system repairs, but a qualified independent shop with hybrid experience can also diagnose and fix the issue.