AutoCodes – Generic – B2236

B2236 Code - Weak Or Defected Electric Vehicle Battery Module Fault

Quick Answer

The Engine Control Module (ECM) monitors the Electric Vehicle Battery Module. Common causes include Faulty Electric Vehicle Battery Module, Electric Vehicle Battery Module harness is open or shorted, Electric Vehicle Battery Module 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: B2236 indicates Weak Or Defected Electric Vehicle Battery Module Fault.
Common causes: Common causes include Faulty Electric Vehicle Battery Module, Electric Vehicle Battery Module harness is open or shorted, Electric Vehicle Battery Module 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 4,009

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 Oct 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2236 Description

The Engine Control Module (ECM) monitors the Electric Vehicle Battery Module. The ECM sets the OBDII code when the Electric Vehicle Battery Module is not to factory specifications.

OBDII Code B2236 - Weak Or Defected Electric Vehicle Battery Module Fault - AutoCodes.com — B2236 Code - Weak Or Defected Electric Vehicle Battery Module Fault

What does this mean?

What are the Possible Causes of the DTC B2236?

Faulty Electric Vehicle Battery Module
Electric Vehicle Battery Module harness is open or shorted
Electric Vehicle Battery Module circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2236?

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 B2236 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 B2236 code?

Need more information on how to fix the B2236 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2236 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2236 Buick — Left Door Lock Switch Fault
B2236 Cadillac — Left Door Lock Switch Fault
B2236 Chevrolet — Left Door Lock Switch Fault
B2236 Chrysler — Right Front Headlamp Ballast ECU Internal
B2236 Dodge — Right Front Headlamp Ballast ECU Internal
B2236 GMC — Left Door Lock Switch Fault
B2236 Jeep — Right Front Headlamp Ballast ECU Internal
B2236 RAM — Right Front Headlamp Ballast ECU Internal

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 B2236 Code

1. What are the common symptoms of OBDII code B2236?

- Common symptoms include reduced electric vehicle range, poor performance, and issues with battery charging.

2. What can cause the OBDII code B2236 to trigger?

- The code B2236 can be triggered by a weak or defective electric vehicle battery module within the vehicle's battery pack.

3. How can I diagnose a weak or defected electric vehicle battery module fault?

- Diagnosis typically involves using specialized diagnostic tools to analyze the battery module's performance, voltage levels, and overall health.

4. Can a weak electric vehicle battery module be repaired?

- In some cases, a weak or defective battery module may be repaired by replacing the faulty cells or modules within the battery pack.

5. What are the potential risks of driving with a weak electric vehicle battery module?

- Driving with a weak battery module can lead to reduced range, diminished performance, and potential safety hazards if the battery fails unexpectedly.

6. How can I prevent issues related to the OBDII code B2236?

- Regular maintenance, monitoring battery health, and addressing any warning signs promptly can help prevent issues related to weak or defective electric vehicle battery modules.

7. Is it safe to continue driving with the OBDII code B2236 present?

- It is not recommended to continue driving with the code B2236 present, as it can lead to further damage to the electric vehicle battery system.

8. How much does it cost to repair a weak or defected electric vehicle battery module fault?

- The cost of repairing a weak or defective electric vehicle battery module can vary depending on the extent of the damage and the specific components that need to be replaced.

9. Can a DIY enthusiast repair a weak electric vehicle battery module?

- Repairing a weak or defective electric vehicle battery module typically requires specialized knowledge and tools, so it is recommended to consult with a professional technician.

10. What should I do if I suspect a weak or defected electric vehicle battery module fault?

- If you suspect a weak or defective electric vehicle battery module fault, it is best to have your vehicle inspected by a qualified technician to diagnose and address the issue promptly.