AutoCodes – Cadillac – B097B Cadillac

B097B Cadillac 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 Cadillac 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 4,492

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

What does this mean?

What are the Possible Causes of the DTC B097B Cadillac?

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 Cadillac?

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 Cadillac 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 Cadillac Code

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

- Common symptoms include illuminated warning lights on the dashboard, difficulty starting the vehicle, and issues with the power mode switch functionality.

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

- Possible causes include a faulty power mode start switch, damaged wiring or connectors in the circuit, or a malfunctioning control module.

3. How can I diagnose the Power Mode Start Switch Circuit issue causing the B097B code in my Cadillac?

- You can diagnose the issue by checking the power mode switch for proper functionality, inspecting the wiring and connectors for any damage, and using a diagnostic scanner to read the trouble codes.

4. Can a DIY enthusiast repair the B097B OBDII code related to the Power Mode Start Switch Circuit in a Cadillac?

- While some basic troubleshooting steps can be taken, repairing the issue may require advanced diagnostic tools and expertise. It's recommended to consult a professional mechanic for accurate diagnosis and repair.

5. Is it safe to continue driving my Cadillac with the B097B OBDII code triggered?

- It is not recommended to continue driving the vehicle with the B097B code active, as it may lead to further electrical issues or potential safety hazards. It's best to address the problem promptly.

6. How much does it typically cost to repair the Power Mode Start Switch Circuit problem causing the B097B code in a Cadillac?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the power mode switch, repairing damaged wiring, or reprogramming the control module. Costs can range from a few hundred to over a thousand dollars.

7. Can a dead battery cause the B097B OBDII code to be triggered in a Cadillac?

- A dead or low battery can sometimes trigger electrical fault codes like B097B due to voltage irregularities. Ensuring the battery is in good condition and properly charged is recommended when diagnosing this issue.

8. Will resetting the OBDII code B097B in a Cadillac's Power Mode Start Switch Circuit solve the problem?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing the fault. Proper diagnosis and repair are necessary to prevent the code from reoccurring.

9. Are there any preventative maintenance steps to avoid the B097B OBDII code related to the Power Mode Start Switch Circuit in a Cadillac?

- Regularly inspecting the power mode switch, wiring, and connectors for any signs of wear or damage can help prevent the issue. Keeping the electrical system well-maintained can also reduce the likelihood of this code appearing.

10. Can extreme temperatures or environmental factors impact the occurrence of the B097B OBDII code in a Cadillac?

- Extreme temperatures or exposure to moisture can potentially affect the Power Mode Start Switch Circuit and lead to the triggering of the B097B code. It's important to protect the vehicle's electrical components from harsh environmental conditions.