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Engine-Codes – Generic – C2423

C2423 Code - Transmitter 3 Battery Voltage Decrease

Quick Answer

The C2423 diagnostic trouble code (DTC) indicates that there is a decrease in battery voltage detected in Transmitter 3. Common causes include Faulty battery in Transmitter 3, Poor electrical connections, Damaged transmitter. 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
C2423 indicates Transmitter 3 Battery Voltage Decrease.
Common causes
Common causes include Faulty battery in Transmitter 3, Poor electrical connections, Damaged transmitter.
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 10, 2024
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Code C2423 Description

The C2423 diagnostic trouble code (DTC) indicates that there is a decrease in battery voltage detected in Transmitter 3. In modern vehicles, transmitters are used for various functions such as keyless entry, remote start, and tire pressure monitoring systems. Transmitter 3 refers to a specific transmitter within the vehicle's system.

OBDII Code C2423 - Transmitter 3 Battery Voltage Decrease
C2423 Code - Transmitter 3 Battery Voltage Decrease

Common Causes of C2423

  1. Faulty battery in Transmitter 3
  2. Poor electrical connections
  3. Damaged transmitter
  4. Corrosion in the transmitter wiring
  5. Issues with the vehicle's electrical system

Symptoms of C2423

  1. Key fob not working consistently
  2. Difficulty in starting the vehicle
  3. Inaccurate tire pressure readings
  4. Warning light on the dashboard related to the keyless entry system

How to Fix C2423

  1. Begin by checking the battery in Transmitter 3 to ensure it is functioning correctly. Replace it if necessary.
  2. Inspect and clean all electrical connections related to Transmitter 3 to ensure proper contact.
  3. Check the transmitter itself for any visible damage or malfunction. Replace if needed.
  4. Inspect the wiring connected to the transmitter for any signs of corrosion or damage.
  5. Clear the DTC and test the system to ensure the issue has been resolved.

Cost to Fix C2423

The cost of repairing a Transmitter 3 battery voltage decrease can vary depending on the specific cause of the issue. On average, the repair costs for this type of problem can range from $100 to $300, including parts and labor. However, it's essential to note that prices may differ based on the location, vehicle make and model, and the expertise of the repair shop. It is advisable to consult with a professional mechanic to get an accurate estimate for this repair.

What does this mean?

Tech Notes for C2423

When the low tire pressure warning light illuminates, immediately check the air pressure of all tires and adjust to the specified pressure. After adjusting air pressure, drive the vehicle at 25 mph (40 km/h) or more to start TPM system re-checking of the tire inflation pressures. Warning light should turn off in a few minutes.

If the warning light is still on after adjusting tire pressure, check for a damaged tire and repair as necessary. If warning light blinks 25 times and then illuminates, and there is not a tire without a tire pressure sensor installed, there is a malfunction in the TPM system. See appropriate manufacturer service information.

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Code C2423 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 C2423 Code

1. What are the common symptoms of OBDII code C2423 (Transmitter 3 Battery Voltage Decrease)?

The common symptoms of OBDII code C2423 include issues with the remote keyless entry system, such as difficulty locking and unlocking the vehicle.

2. What are the potential causes of OBDII code C2423?

Potential causes of OBDII code C2423 include a weak or failing battery in the key fob transmitter, a faulty transmitter module, or electrical issues within the vehicle's system.

3. How can I diagnose the cause of OBDII code C2423?

Diagnosing the cause of OBDII code C2423 typically involves checking the battery level in the key fob transmitter, inspecting the transmitter module for any visible damage, and testing the electrical connections related to the remote keyless entry system.

4. Can I repair OBDII code C2423 on my own?

Depending on the cause of the code, you may be able to repair OBDII code C2423 on your own by replacing the battery in the key fob transmitter or addressing any electrical issues within the system. However, some cases may require professional diagnosis and repair.

5. Is it safe to continue driving with OBDII code C2423 present?

While OBDII code C2423 is not typically associated with immediate safety concerns, it is recommended to address the underlying issue promptly to ensure the proper functioning of the remote keyless entry system.

6. How much does it cost to repair OBDII code C2423?

The cost to repair OBDII code C2423 can vary depending on the cause of the issue and whether you choose to address it yourself or seek professional assistance. Replacing the battery in the key fob transmitter is usually a relatively inexpensive fix.

7. Can OBDII code C2423 affect other vehicle systems?

OBDII code C2423 is specifically related to the transmitter battery voltage decrease and is typically isolated to the remote keyless entry system. However, it's essential to address the code promptly to prevent potential electrical issues from affecting other systems.

8. Will resetting the OBDII system clear OBDII code C2423?

Resetting the OBDII system may temporarily clear OBDII code C2423, but if the underlying issue is not addressed, the code is likely to reappear. It's best to diagnose and repair the cause of the code to prevent it from returning.

9. How long does it take to repair OBDII code C2423?

The time it takes to repair OBDII code C2423 can vary depending on the cause of the issue and the complexity of the repair. Replacing the battery in the key fob transmitter is a relatively quick fix, while diagnosing and addressing electrical issues may take longer.

10. Can extreme temperatures affect OBDII code C2423?

Extreme temperatures can potentially affect the battery life in the key fob transmitter, leading to issues like OBDII code C2423. It's essential to keep the transmitter and vehicle systems protected from extreme heat or cold to prevent premature battery failure.

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