AutoCodes – Buick – B097C Buick

B097C Buick Code - Power Mode Run/Start Indicator

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: B097C Buick indicates Power Mode Run/Start Indicator.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 768

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B097C 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 B097C Buick - Power Mode Run/Start Indicator - AutoCodes.com — B097C Buick Code - Power Mode Run/Start Indicator

What does this mean?

What are the Possible Causes of the DTC B097C 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 B097C 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

B097C 01: Power Mode Run/Start Circuit Indicator Short to Battery
B097C 02: Power Mode Run/Start Circuit Indicator Short to Ground
B097C 04: Power Mode Run/Start Indicator Circuit Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B097C 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.

Need more information about the B097C Buick code?

Need more information on how to fix the B097C Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B097C Buick code diagnosed by a professional: Find a repair shop in your area

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 B097C Buick Code

1. What does the OBDII code B097C for the Power Mode Run/Start Indicator in a Buick mean?

The B097C code indicates a problem with the Power Mode Run/Start Indicator system in a Buick vehicle.

2. What are common symptoms of a B097C OBDII code in a Buick?

Common symptoms include the Run/Start indicator not functioning properly, the vehicle not starting, or issues with the power mode selection.

3. What are possible causes of the B097C code in a Buick?

Possible causes of the B097C code include a faulty indicator switch, wiring issues, a malfunctioning power mode control module, or a software glitch.

4. How can I diagnose the B097C code in my Buick?

Diagnosis involves inspecting the indicator switch, checking the wiring for any damage, and using a diagnostic scanner to read the trouble codes stored in the power mode control module.

5. Can I still drive my Buick with a B097C OBDII code?

It is not recommended to drive your Buick with the B097C code present, as it may lead to starting issues or other electrical problems.

6. How can I repair the B097C OBDII code in my Buick?

Repair options include replacing the indicator switch, repairing any damaged wiring, or reprogramming the power mode control module.

7. Is it safe to reset the B097C code in my Buick using an OBDII scanner?

Resetting the code may temporarily clear the indicator, but it is important to address the underlying issue to prevent it from reoccurring.

8. Can a DIY enthusiast fix the B097C code in their Buick?

Depending on the specific cause, some DIY enthusiasts may be able to address the issue themselves, but complex electrical repairs may require professional assistance.

9. How much does it cost to repair a B097C OBDII code in a Buick?

The cost of repair can vary depending on the exact cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

10. How can I prevent the B097C code from appearing in my Buick in the future?

Regular maintenance, checking for any electrical issues, and addressing warning signs promptly can help prevent the B097C code from reoccurring in your Buick.