AutoCodes – GMC – P1A59 GMC

P1A59 GMC 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 GMC 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 1,144

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

What does this mean?

What are the Possible Causes of the DTC P1A59 GMC?

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

How to Fix the DTC P1A59 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 P1A59 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 P1A59 GMC Code

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

- Common symptoms include the hybrid system warning light illuminating on the dashboard, decreased fuel efficiency, and difficulty starting the vehicle.

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

- Possible causes include a faulty hybrid battery pack, issues with battery cell voltage imbalance, or problems with the battery management system.

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

- Diagnosis typically involves using a scan tool to read the code, checking the voltage levels of individual battery cells, and performing a thorough inspection of the hybrid battery pack components.

4. Can I drive my vehicle with OBDII code P1A59 GMC (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 battery system and potentially cause the vehicle to stall.

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

- Repair options may include replacing the hybrid battery pack, addressing any voltage imbalances within the battery cells, or recalibrating the battery management system.

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

- DIY tips may include checking the battery connections for tightness, ensuring proper battery ventilation, and keeping the hybrid battery pack clean and free of debris.

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

- The cost of repair can vary depending on the specific issue, but it may range from a few hundred to a few thousand dollars, especially if the hybrid battery pack needs to be replaced.

8. Can OBDII code P1A59 GMC (Hybrid Battery Pack Voltage) be intermittent?

- Yes, this code can sometimes be intermittent, especially if the issue is related to fluctuations in battery voltage or temperature. It is still important to address the underlying problem promptly.

9. What are the potential risks of ignoring OBDII code P1A59 GMC (Hybrid Battery Pack Voltage)?

- Ignoring this code can result in decreased fuel efficiency, potential damage to other hybrid system components, and even complete failure of the hybrid battery pack.

10. How long does it typically take to repair OBDII code P1A59 GMC (Hybrid Battery Pack Voltage)?

- The repair time can vary depending on the extent of the issue and the availability of parts, but it may take a few hours to a full day to address and resolve the code properly.