AutoCodes – Generic – P1A59

P1A59 Code - Hybrid Battery Pack Voltage

Quick Answer

The Battery Energy Control Module (BECM) monitors while deviation of the voltage across the battery pack is checked using the 3 module voltage sensors. Common causes include Faulty Battery Pack, Battery Pack harness is open or shorted, Battery Pack 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: P1A59 indicates Hybrid Battery Pack Voltage.
Common causes: Common causes include Faulty Battery Pack, Battery Pack harness is open or shorted, Battery Pack 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 1,845

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 19, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1A59 Description

The Battery Energy Control Module (BECM) monitors while deviation of the voltage across the battery pack is checked using the 3 module voltage sensors. If one module within the battery pack is bad, it will manifest itself in a high Delta V SOH (state of health).

OBDII Code P1A59 - Hybrid Battery Pack Voltage - AutoCodes.com — P1A59 Code - Hybrid Battery Pack Voltage

What does this mean?

What are the Possible Causes of the DTC P1A59?

Faulty Battery Pack
Battery Pack harness is open or shorted
Battery Pack circuit poor electrical connection

How to Fix the DTC P1A59?

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 P1A59 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 P1A59 code?

Need more information on how to fix the P1A59 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1A59 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1A59 Buick — Hybrid Battery Pack Voltage
P1A59 Cadillac — Hybrid Battery Pack Voltage
P1A59 Chevrolet — Hybrid Battery Pack Voltage
P1A59 GMC — Hybrid Battery Pack Voltage
P1A59 Saturn — Hybrid Battery Pack Voltage

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 P1A59 Code

1. What are common symptoms of OBDII code P1A59 (Hybrid Battery Pack Voltage)?

- Common symptoms include decreased fuel efficiency, reduced power, and warning lights on the dashboard related to the hybrid system.

2. What are possible causes of OBDII code P1A59 (Hybrid Battery Pack Voltage)?

- Causes may include a failing hybrid battery pack, faulty battery management system, or issues with the charging system.

3. How can I diagnose OBDII code P1A59 (Hybrid Battery Pack Voltage)?

- Diagnosis typically involves using a professional OBDII scanner to read the code, conducting voltage tests on the hybrid battery pack, and inspecting related components for any visible damage.

4. Can I drive my vehicle with OBDII code P1A59 (Hybrid Battery Pack Voltage) present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the hybrid system and potentially unsafe driving conditions.

5. How can I repair OBDII code P1A59 (Hybrid Battery Pack Voltage)?

- Repair options may include replacing the hybrid battery pack, repairing the battery management system, or addressing any issues with the charging system.

6. Are there any DIY tips for addressing OBDII code P1A59 (Hybrid Battery Pack Voltage)?

- DIY tips may include checking for loose connections, ensuring proper battery maintenance, and following manufacturer guidelines for hybrid system care.

7. How much does it typically cost to repair OBDII code P1A59 (Hybrid Battery Pack Voltage)?

- Repair costs can vary depending on the specific issue, but replacing a hybrid battery pack can range from a few hundred to several thousand dollars.

8. Can OBDII code P1A59 (Hybrid Battery Pack Voltage) be a recurring issue?

- Yes, if the underlying cause is not properly addressed, the code may recur, leading to ongoing issues with the hybrid system.

9. Are there any safety concerns associated with OBDII code P1A59 (Hybrid Battery Pack Voltage)?

- Yes, driving with this code present can pose safety concerns due to potential power loss or system malfunctions, so it is important to address the issue promptly.

10. How can regular maintenance help prevent OBDII code P1A59 (Hybrid Battery Pack Voltage)?

- Regular maintenance, such as checking battery health, monitoring charging system performance, and following recommended service schedules, can help prevent issues that may trigger this code.