AutoCodes – Chevrolet – P1A58 Chevrolet

P1A58 Chevrolet Code - Hybrid Battery Pack Relay Open

Quick Answer

The Energy Storage Control Module (ESCM) will monitor the battery cut off switch for overvoltage or an open. Common causes include Faulty Hybrid Battery Cut Off Switch, Hybrid Battery Cut Off Switch harness is open or shorted, Hybrid Battery Cut Off Switch 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: P1A58 Chevrolet indicates Hybrid Battery Pack Relay Open.
Common causes: Common causes include Faulty Hybrid Battery Cut Off Switch, Hybrid Battery Cut Off Switch harness is open or shorted, Hybrid Battery Cut Off Switch 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 1,118

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Feb 19, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1A58 Chevrolet Description

The Energy Storage Control Module (ESCM) will monitor the battery cut off switch for overvoltage or an open. The ESCM sets the OBDII code when the Hybrid Battery Cut Off Switch is not to factory specifications.

OBDII Code P1A58 Chevrolet - Hybrid Battery Pack Relay Open - AutoCodes.com — P1A58 Chevrolet Code - Hybrid Battery Pack Relay Open

What does this mean?

What are the Possible Causes of the DTC P1A58 Chevrolet?

Faulty Hybrid Battery Cut Off Switch
Hybrid Battery Cut Off Switch harness is open or shorted
Hybrid Battery Cut Off Switch circuit poor electrical connection

How to Fix the DTC P1A58 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 P1A58 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?

Get the P1A58 Chevrolet 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 P1A58 Chevrolet Code

What does the OBDII code P1A58 mean for a Chevrolet vehicle?

The OBDII code P1A58 indicates that there is an open circuit in the hybrid battery pack relay, which can disrupt the proper functioning of the hybrid battery system.

What are common symptoms of the P1A58 code?

Common symptoms include a warning light on the dashboard, reduced engine power, battery charging issues, and the vehicle may not start or may enter limp mode.

What could cause the P1A58 code to trigger?

Causes may include a faulty hybrid battery relay, damaged wiring or connectors in the hybrid battery circuit, or issues within the hybrid battery itself.

How can I diagnose the P1A58 code?

Start by inspecting the hybrid battery relay and its connections for damage or corrosion. Use a multimeter to check for continuity in the relay circuit, and scan the vehicle with an OBDII scanner for any additional codes.

What are some potential repair solutions for the P1A58 code?

Repair solutions may include replacing a faulty hybrid battery relay, repairing or replacing damaged wiring or connectors, and ensuring proper connections are made within the hybrid battery system.

Can I drive my Chevrolet if the P1A58 code is present?

It is not advisable to drive the vehicle if the P1A58 code is present, as it could lead to further damage to the hybrid system or result in loss of power while on the road.

How can I reset the P1A58 code after repairs?

Once the necessary repairs have been made, you can reset the code by using an OBDII scanner to clear the codes or by disconnecting the vehicle's battery for a short period.

Is the P1A58 code a serious issue?

Yes, the P1A58 code is considered a serious issue as it directly affects the hybrid battery system, which is crucial for the operation of hybrid vehicles. Prompt attention is recommended.

Will the P1A58 code affect my vehicleâ€™s fuel economy?

Yes, if the hybrid battery system is not functioning properly due to the P1A58 code, it can lead to reduced fuel efficiency and performance issues in your vehicle.

Can I fix the P1A58 code myself, or should I seek professional help?

While some basic checks can be done at home, it is often best to seek professional help for diagnosing and repairing hybrid system issues, as they can be complex and require specialized tools.