AutoCodes – Buick – B097B Buick

B097B Buick Code - Power Mode Start Switch Circuit

Quick Answer

The Ignition Mode Switch has 2 LED's that indicate the vehicle power mode. Common causes include Faulty Ignition Mode Switch, Ignition Mode Switch harness is open or shorted, Ignition Mode Switch 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: B097B Buick indicates Power Mode Start Switch Circuit.
Common causes: Common causes include Faulty Ignition Mode Switch, Ignition Mode Switch harness is open or shorted, Ignition Mode Switch 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 2,273

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 Mar 11, 2021

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B097B Buick Description

The Ignition Mode Switch has 2 LED's that indicate the vehicle power mode. When the vehicle is in the off mode, both LED's will be off. Pressing the ignition mode switch button once (without the brake pedal applied), the vehicle enters the accessory mode and the amber LED (ACC) will illuminate. The accessory mode has a 5 minute timeout to reduce battery drain. Pressing the ignition mode switch button a second time (without the brake pedal applied), the vehicle enters the run/start mode (without the engine running) and the green LED (Run/Start) will illuminate. Pressing and holding the push button start switch for at least 5 seconds will place the vehicle in run/start mode (without the vehicle running) and the green LED (Run/Start) will illuminate. With the ignition off (with the brake pedal applied), pressing the ignition mode switch button once, the vehicle will enter run/start mode and the green LED (run/start) will illuminate. This will start the engine. Both LED's have the voltage supplied from the Body Control Module (BCM). The ignition mode switch sends the ignition mode switch status to the Passive Entry Passive Start Module (PEPS) and to the BCM. The PEPS module sends a redundant signal to the BCM with the ignition mode switch status.

OBDII Code B097B Buick - Power Mode Start Switch Circuit - AutoCodes.com — B097B Buick Code - Power Mode Start Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B097B Buick?

Faulty Ignition Mode Switch
Ignition Mode Switch harness is open or shorted
Ignition Mode Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B097B Buick?

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 does this mean?

Code Tech Notes

B097B 00: Power Mode Start Switch Circuit Malfunction
B097B 02: Power Mode Start Switch Circuit Short to Ground
B097B 04: Power Mode Start Switch Circuit Open
B097B 08: Power Mode Start Switch Circuit Performance - Signal Invalid
B097B 61: Power Mode Start Switch Circuit - Stuck

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B097B Buick 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 B097B Buick Code

1. What are the common symptoms of OBDII code B097B in a Buick related to the Power Mode Start Switch Circuit?

- Common symptoms include difficulty starting the vehicle, intermittent or complete loss of power to the ignition system, and potential issues with the vehicle's power mode selection.

2. What are the possible causes of OBDII code B097B in a Buick?

- The code B097B in a Buick can be caused by a faulty power mode start switch, damaged wiring or connectors in the circuit, or a malfunction in the power mode control module.

3. How can I diagnose the Power Mode Start Switch Circuit issue associated with OBDII code B097B in my Buick?

- Diagnosis involves checking the power mode start switch for proper functionality, inspecting the wiring and connectors for damage or corrosion, and using a diagnostic scanner to retrieve trouble codes and data from the power mode control module.

4. What are some repair tips for addressing OBDII code B097B in a Buick?

- Repair tips include replacing the power mode start switch if faulty, repairing any damaged wiring or connectors, and reprogramming or replacing the power mode control module as needed.

5. Can I continue to drive my Buick with the OBDII code B097B related to the Power Mode Start Switch Circuit?

- It is not recommended to drive your Buick with this code present, as it can lead to potential starting issues and loss of power while driving. It is best to address the issue promptly to ensure safe and reliable operation of the vehicle.

6. How much does it typically cost to repair OBDII code B097B in a Buick?

- The cost of repairing OBDII code B097B can vary depending on the specific cause of the issue. Costs may include parts such as a new power mode start switch or power mode control module, as well as labor charges for diagnosis and repair.

7. Can I reset the OBDII code B097B in my Buick without fixing the underlying issue?

- While you can clear the code temporarily, it is important to address the underlying issue causing the code to prevent further problems with starting and power mode selection in your Buick.

8. Are there any recalls or technical service bulletins related to OBDII code B097B in Buick vehicles?

- It is recommended to check with your Buick dealership or refer to the manufacturer's website for any recalls or technical service bulletins related to OBDII code B097B in your specific vehicle model and year.

9. How long does it typically take to repair OBDII code B097B in a Buick?

- The repair time for OBDII code B097B can vary depending on the exact cause of the issue and the complexity of the repair. It is best to consult with a qualified mechanic for an accurate estimate of repair time.

10. Can a DIY enthusiast fix OBDII code B097B in a Buick, or is it best left to a professional mechanic?

- While some DIY enthusiasts may be able to diagnose and repair the issue themselves, dealing with electrical components and modules can be complex. It is recommended to consult with a professional mechanic for proper diagnosis and repair of OBDII code B097B in a Buick to ensure the issue is resolved correctly.