AutoCodes – GMC – B097C GMC

B097C GMC 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 GMC 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.

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Code Popularity 805

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

What does this mean?

What are the Possible Causes of the DTC B097C GMC?

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 GMC?

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 GMC 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 B097C GMC Code

1. What are the common symptoms of OBDII code B097C GMC (Power Mode Run/Start Indicator)?

- The common symptoms include the power mode indicator not working properly, difficulty starting the vehicle, and issues with the vehicle running in different modes.

2. What can cause OBDII code B097C GMC to trigger?

- This code can be triggered by a faulty power mode switch, damaged wiring or connectors related to the power mode indicator, or a malfunction in the power mode control module.

3. How can I diagnose the cause of OBDII code B097C GMC?

- To diagnose the issue, you can start by checking the power mode switch and its connections for any visible damage. Using a diagnostic scan tool to read the trouble codes and accessing the power mode control module for further inspection can also help.

4. What are the potential repair tips for OBDII code B097C GMC?

- Repair tips may include repairing or replacing the power mode switch, repairing damaged wiring or connectors, and resetting the power mode control module to clear the trouble code.

5. Can OBDII code B097C GMC cause any unsafe driving conditions?

- While the code itself may not directly cause unsafe driving conditions, issues related to the power mode indicator can affect the vehicle's starting and running capabilities, potentially leading to safety concerns.

6. Is it safe to continue driving with OBDII code B097C GMC present?

- It is generally not recommended to continue driving with this code present, as it can indicate underlying issues that may affect the proper functioning of your vehicle.

7. How much does it typically cost to repair OBDII code B097C GMC?

- The cost of repair can vary depending on the specific cause of the code and the labor rates in your area. Repair costs may include parts replacement and diagnostic fees.

8. Can I reset OBDII code B097C GMC on my own?

- You can attempt to reset the code using a diagnostic scan tool, but it is important to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

9. Will OBDII code B097C GMC affect my vehicle's performance?

- The code can potentially affect the vehicle's performance if left unresolved, as issues with the power mode indicator may impact the vehicle's starting and running capabilities.

10. How can I prevent OBDII code B097C GMC from recurring in the future?

- Regular maintenance checks, prompt addressing of any power mode indicator issues, and ensuring proper wiring connections can help prevent the code from recurring in the future.