AutoCodes – Pontiac – B1910 Pontiac

B1910 Pontiac Code - Generator L Terminal Open Circuit

Quick Answer

Generator grounds circuit when the ignition switch is in the RUN position and engine speed is less than 400 RPM. Common causes include Faulty Generator (Alternator), Generator harness is open or shorted, Generator 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: B1910 Pontiac indicates Generator L Terminal Open Circuit.
Common causes: Common causes include Faulty Generator (Alternator), Generator harness is open or shorted, Generator 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 551

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 Jul 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1910 Pontiac Description

Generator grounds circuit when the ignition switch is in the RUN position and engine speed is less than 400 RPM. The Diagnostic Trouble Code (DTC) B1910 will set when the Instrument Panel Cluster (IPC) determines that engine speed is less than 400 RPM and senses a high voltage (open) in the generator.

OBDII Code B1910 Pontiac - Generator L Terminal Open Circuit - AutoCodes.com — B1910 Pontiac Code - Generator L Terminal Open Circuit

What does this mean?

What are the Possible Causes of the DTC B1910 Pontiac?

Faulty Generator (Alternator)
Generator harness is open or shorted
Generator circuit poor electrical connection

How to Fix the DTC B1910 Pontiac?

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 B1910 Pontiac 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 more information on how to fix the B1910 Pontiac code? Get Access to Factory Service Manuals

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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 B1910 Pontiac Code

1. What are the common symptoms of OBDII code B1910 Pontiac (Generator L Terminal Open Circuit)?

The common symptoms include issues with the electrical system, such as dimming lights, dead battery, or problems with the alternator.

2. What can cause the OBDII code B1910 Pontiac to appear?

This code usually appears due to a damaged or loose connection in the wiring harness related to the generator L terminal.

3. How can I diagnose the Generator L Terminal Open Circuit issue in my Pontiac?

You can start by checking the wiring harness for any visible damage or loose connections. Using a multimeter to test the continuity of the circuit can also help pinpoint the problem.

4. Can a faulty alternator cause the B1910 code to trigger?

Yes, a faulty alternator can sometimes lead to the Generator L Terminal Open Circuit code. It's important to test the alternator's output and connections as part of the diagnostic process.

5. What should I do if I encounter the B1910 code in my Pontiac?

If you encounter this code, it's best to address the issue promptly to prevent further damage to the electrical system. Checking the wiring and connections, as well as consulting a professional if needed, is recommended.

6. Is it safe to continue driving my Pontiac with the B1910 code present?

It is not recommended to continue driving your vehicle with the Generator L Terminal Open Circuit issue unresolved, as it can lead to electrical problems and potential breakdowns.

7. Can I repair the B1910 code in my Pontiac myself?

If you have experience with automotive electrical systems and access to the necessary tools, you may be able to repair the issue yourself by inspecting and repairing the wiring or connections related to the generator L terminal.

8. How much does it typically cost to fix the Generator L Terminal Open Circuit problem in a Pontiac?

The cost of repair can vary depending on the extent of the damage and whether you choose to DIY or seek professional help. It's advisable to get a few quotes from reputable mechanics to compare prices.

9. Will resetting the OBDII code make the issue go away?

Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the Generator L Terminal Open Circuit issue. It's crucial to diagnose and address the root cause of the code.

10. Is the B1910 code specific to Pontiac vehicles, or can it occur in other car makes?

While the B1910 OBDII code is associated with Pontiac vehicles, similar issues with the generator L terminal circuit can occur in other car makes and models as well.