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Engine-Codes – Generic – B23C1

B23C1 Code - Stop/Start Disable Switch 2 Circuit Low

Quick Answer

The B23C1 diagnostic trouble code (DTC) refers to the Stop/Start Disable Switch 2 Circuit Low. Common causes include Faulty stop/start disable switch, Wiring or connector issues in the circuit, Corrosion or damage to the circuit components. 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
B23C1 indicates Stop/Start Disable Switch 2 Circuit Low.
Common causes
Common causes include Faulty stop/start disable switch, Wiring or connector issues in the circuit, Corrosion or damage to the circuit components.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B23C1 Description

The B23C1 diagnostic trouble code (DTC) refers to the Stop/Start Disable Switch 2 Circuit Low. In vehicles equipped with a stop/start system, this code indicates a problem with the circuit that controls the disable switch, specifically the second one in the system. The stop/start system is designed to automatically shut off the engine when the vehicle comes to a stop, such as at a traffic light, to save fuel and reduce emissions. The system then restarts the engine when the driver releases the brake pedal to continue driving.

OBDII Code B23C1 - Stop/Start Disable Switch 2 Circuit Low
B23C1 Code - Stop/Start Disable Switch 2 Circuit Low

Common Causes of B23C1

  1. Faulty stop/start disable switch
  2. Wiring or connector issues in the circuit
  3. Corrosion or damage to the circuit components
  4. Software or programming issues with the stop/start system
  5. Electrical system malfunction

Symptoms of B23C1

  1. Engine not shutting off when stopped
  2. Engine not restarting after coming to a stop
  3. Warning light on the dashboard indicating a system issue
  4. Decreased fuel efficiency
  5. Increased emissions levels

How to Fix B23C1

  1. Begin by diagnosing the specific cause of the B23C1 code using a diagnostic scanner to pinpoint the exact issue within the circuit.
  2. Inspect the stop/start disable switch and its wiring for any visible damage or corrosion, repairing or replacing as necessary.
  3. Check the circuit components for proper voltage and resistance levels, addressing any discrepancies found.
  4. Clear the DTC from the vehicle's computer system to reset the warning light and test the stop/start system to ensure proper operation.
  5. If the issue persists, consult the vehicle's service manual or seek professional assistance for further troubleshooting and repair.

Cost to Fix B23C1

The typical repair costs for addressing the B23C1 code can vary depending on the specific cause of the issue and the extent of repairs needed. In general, parts for this repair may range from $50 to $200, with additional labor costs ranging from $100 to $300. However, it's important to note that these are rough estimates, and actual costs can vary based on factors such as location, vehicle make and model, and the specific repair shop or dealership chosen. Diagnostic time and labor rates can also impact the final repair bill, with rates typically ranging from $80 to $150 per hour. It's recommended to contact local auto repair shops for more accurate pricing information.

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Code B23C1 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 B23C1 Code

1. What are the common symptoms of OBDII code B23C1 (Stop/Start Disable Switch 2 Circuit Low)?

The common symptoms of this code may include the stop/start system not functioning properly, the engine not shutting off when the vehicle comes to a stop, and the check engine light being illuminated.

2. What are the possible causes of OBDII code B23C1 (Stop/Start Disable Switch 2 Circuit Low)?

Possible causes of this code include a faulty stop/start disable switch, damaged wiring or connectors in the circuit, a defective stop/start system control module, or a software issue within the system.

3. How can I diagnose the cause of OBDII code B23C1 (Stop/Start Disable Switch 2 Circuit Low)?

To diagnose this code, you may need to perform a visual inspection of the circuit and connectors, test the stop/start disable switch for proper functionality, check for any damaged wiring, and use a diagnostic scanner to retrieve additional fault codes and data.

4. Can I continue driving my vehicle with OBDII code B23C1 (Stop/Start Disable Switch 2 Circuit Low)?

It is generally safe to drive the vehicle with this code, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent any further problems with the stop/start system.

5. How can I repair OBDII code B23C1 (Stop/Start Disable Switch 2 Circuit Low) myself?

If you have experience with automotive electrical systems, you can attempt to repair this code by checking and repairing any damaged wiring or connectors, replacing the stop/start disable switch if necessary, and clearing the fault code with a diagnostic scanner.

6. Will resetting the OBDII code B23C1 (Stop/Start Disable Switch 2 Circuit Low) make it go away permanently?

Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code is likely to return. It is important to diagnose and repair the root cause of the problem to prevent future occurrences.

7. Is OBDII code B23C1 (Stop/Start Disable Switch 2 Circuit Low) a serious issue?

While this code may not affect the drivability of the vehicle, it is still important to address it promptly to ensure the proper functioning of the stop/start system and to prevent potential issues in the future.

8. Can a low battery voltage trigger OBDII code B23C1 (Stop/Start Disable Switch 2 Circuit Low)?

Low battery voltage can sometimes cause electrical issues, including triggering this code. It is recommended to check the battery voltage and ensure it is within the proper range to rule out this potential cause.

9. How long does it usually take to repair OBDII code B23C1 (Stop/Start Disable Switch 2 Circuit Low)?

The repair time can vary depending on the exact cause of the code and the availability of parts. In general, diagnosing and repairing this code can take anywhere from a few hours to a full day.

10. Is it necessary to visit a dealership for OBDII code B23C1 (Stop/Start Disable Switch 2 Circuit Low) repair?

While visiting a dealership is an option, you can also consult an independent mechanic or repair shop with experience in diagnosing and repairing automotive electrical issues related to the stop/start system to address this code effectively.

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