Engine-CodesGeneric – B23C3

B23C3 Code - Stop/Start Disable Switch 1/2 Correlation

Quick Answer

The B23C3 diagnostic trouble code (DTC) indicates a correlation issue between the stop/start disable switch 1 and 2 in the vehicle's system. Common causes include Faulty stop/start disable switch, Wiring issues or shorts in the stop/start system circuit, Corrosion or poor connections in the switch circuit. 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
B23C3 indicates Stop/Start Disable Switch 1/2 Correlation.
Common causes
Common causes include Faulty stop/start disable switch, Wiring issues or shorts in the stop/start system circuit, Corrosion or poor connections in the switch circuit.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B23C3 Description

The B23C3 diagnostic trouble code (DTC) indicates a correlation issue between the stop/start disable switch 1 and 2 in the vehicle's system. This code is commonly found in modern vehicles equipped with automatic start/stop technology, which shuts off the engine when the vehicle comes to a stop to save fuel and reduce emissions. The stop/start system works by automatically restarting the engine when the driver releases the brake pedal.

OBDII Code B23C3 - Stop/Start Disable Switch 1/2 Correlation
B23C3 Code - Stop/Start Disable Switch 1/2 Correlation

Common Causes of B23C3

  1. Faulty stop/start disable switch
  2. Wiring issues or shorts in the stop/start system circuit
  3. Corrosion or poor connections in the switch circuit
  4. Software glitches in the vehicle's control module

Symptoms of B23C3

  1. Engine not shutting off when coming to a stop
  2. Engine restarting unexpectedly when stopped
  3. Loss of fuel efficiency
  4. Illumination of the Check Engine Light

How to Fix B23C3

  1. Begin by diagnosing the specific cause of the correlation issue by using a diagnostic scanner to read the code and identify the faulty component.
  2. Inspect the stop/start disable switches and their wiring for any visible damage, corrosion, or loose connections. Replace or repair as needed.
  3. Check for any software updates available for the vehicle's control module and perform the necessary reprogramming to correct the correlation problem.
  4. Clear the DTC from the vehicle's memory using the diagnostic scanner and test the stop/start system to ensure proper functionality.
  5. If the issue persists, further testing may be required to pinpoint the root cause, such as checking the voltage and resistance in the switch circuits.

Cost to Fix B23C3

The typical repair cost for addressing a stop/start disable switch 1/2 correlation issue can range from $100 to $300, depending on the specific cause of the problem and the cost of replacement parts. Labor rates at auto repair shops can vary, typically ranging from $80 to $150 per hour. It's advisable to check with local repair shops for a more accurate estimate based on your vehicle's make and model.

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Code B23C3 Information for Specific Makes

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 B23C3 Code

1. What does OBDII code B23C3 "Stop/Start Disable Switch 1/2 Correlation" mean?

The code B23C3 indicates a problem with the correlation between the two stop/start disable switches in the vehicle.

2. What are the common symptoms of OBDII code B23C3?

Common symptoms may include the stop/start system not functioning correctly, warning lights on the dashboard, or issues with the vehicle's starting process.

3. What are the possible causes of OBDII code B23C3?

Possible causes of this code include a faulty stop/start disable switch, wiring issues, a malfunctioning control module, or a communication error between components.

4. How can I diagnose the issue related to OBDII code B23C3?

Diagnosis typically involves checking the stop/start disable switches, inspecting the wiring for any damage or loose connections, and using a diagnostic scanner to read the error codes and pinpoint the exact cause.

5. Can I continue driving with OBDII code B23C3 present?

It is generally not recommended to continue driving with this code present, as it may affect the proper functioning of the stop/start system and potentially lead to other issues.

6. How can I repair OBDII code B23C3?

Repairing this code may involve replacing the faulty stop/start disable switch, repairing any damaged wiring, resetting the control module, or addressing any communication errors between components.

7. Can I reset the OBDII code B23C3 on my own?

You can try resetting the code using an OBDII scanner, but it is important to diagnose and repair the underlying issue to prevent the code from reappearing.

8. Are there any DIY tips for fixing OBDII code B23C3?

If you have experience with automotive electrical systems, you may be able to inspect the switches and wiring yourself. However, for more complex issues, it is recommended to seek professional assistance.

9. How much does it typically cost to repair OBDII code B23C3?

The cost of repairing this code can vary depending on the underlying issue, the extent of the repairs needed, and labor costs. It is advisable to get a diagnosis and repair estimate from a qualified mechanic.

10. Is OBDII code B23C3 a common issue in certain vehicle makes and models?

This code may be more common in vehicles equipped with stop/start systems, but its occurrence can still vary across different makes and models.

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