Engine-CodesBuick – P1E50 Buick

P1E50 Buick Code - Hybrid/Electric Vehicle Battery 37 Circuit

Quick Answer

The P1E50 diagnostic trouble code for Buick vehicles specifically relates to the Hybrid/Electric Vehicle Battery 37 Circuit. Common causes include Wiring issues, Faulty sensors, Malfunctioning battery cell. 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
P1E50 Buick indicates Hybrid/Electric Vehicle Battery 37 Circuit.
Common causes
Common causes include Wiring issues, Faulty sensors, Malfunctioning battery cell.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P1E50 Buick Description

The P1E50 diagnostic trouble code for Buick vehicles specifically relates to the Hybrid/Electric Vehicle Battery 37 Circuit. This code indicates a problem with the circuit that controls the 37th battery cell in the hybrid or electric vehicle's battery pack. The battery pack is a crucial component in hybrid and electric vehicles, as it stores the energy needed to power the electric motor. The 37th cell is just one of many cells in the battery pack, but if there is an issue with this particular circuit, it can have significant implications for the vehicle's performance.

OBDII Code P1E50 Buick - Hybrid/Electric Vehicle Battery 37 Circuit
P1E50 Buick Code - Hybrid/Electric Vehicle Battery 37 Circuit

Common Causes of P1E50 Buick

  1. Wiring issues
  2. Faulty sensors
  3. Malfunctioning battery cell
  4. Corrosion in the battery pack
  5. Overcharging of the battery

Symptoms of P1E50 Buick

  1. Reduced power and efficiency
  2. Decreased electric driving range
  3. Vehicle going into reduced power mode
  4. Vehicle failing to start

How to Fix P1E50 Buick

  1. Perform a thorough inspection of the battery pack and associated wiring to identify any visible damage or corrosion.
  2. Use a multimeter to test the voltage and resistance of the 37th battery cell to determine if it is functioning properly.
  3. Replace any damaged wiring or sensors that may be causing the circuit issue.
  4. If the 37th battery cell is found to be faulty, it may need to be replaced to resolve the problem.
  5. Clear the diagnostic trouble codes from the vehicle's system and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1E50 Buick

The cost of repairing a P1E50 code related to the Hybrid/Electric Vehicle Battery 37 Circuit can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts and labor for this type of repair can range from $500 to $1500. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with rates typically ranging between $80 and $150 per hour. Factors such as location, vehicle make and model, and engine type can also impact the overall cost of the repair. For a more accurate estimate, it's recommended to consult with a qualified technician or auto repair shop.

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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 P1E50 Buick Code

1. What does the OBDII code P1E50 mean for a Buick?

Code P1E50 indicates an issue with the Hybrid/Electric Vehicle (HEV) Battery 37 Circuit, which is specific to the vehicle's high-voltage battery system.

2. What are common symptoms of the P1E50 code in a Buick?

Symptoms may include a check engine light, reduced hybrid or electric vehicle performance, limited power, or the vehicle not switching to electric mode.

3. What causes the P1E50 code in a Buick?

Common causes include a faulty battery module or sensor, wiring issues in the high-voltage battery circuit, or a malfunction in the battery control module.

4. Can I continue driving my Buick with the P1E50 code?

It’s not recommended to drive for extended periods as the issue may worsen, and the vehicle could enter a reduced power mode or fail to start.

5. How is the P1E50 code diagnosed?

Technicians use a scan tool to check for additional codes, inspect the high-voltage battery circuit wiring, and test the battery control module and related components.

6. What repairs can fix the P1E50 code?

Repairs may involve replacing a faulty battery module, repairing damaged wiring in the circuit, or reprogramming or replacing the battery control module.

7. Is the P1E50 code covered under warranty for my Buick?

It depends on your vehicle's warranty terms, but many high-voltage battery components are covered under extended warranties for hybrid or electric vehicles.

8. How much does it cost to repair the P1E50 code on a Buick?

Repair costs vary depending on the issue but can range from $200 for wiring repairs to over $1,000 for battery module replacement.

9. Can a low 12-volt battery cause the P1E50 code?

While unlikely, a weak 12-volt battery can sometimes affect hybrid system diagnostics, so it’s worth checking and charging or replacing it if needed.

10. How can I prevent the P1E50 code from occurring again?

Regular maintenance of the high-voltage battery system, keeping software up to date, and avoiding extreme driving conditions can help prevent this issue.

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