Engine-CodesChrysler – B237C Chrysler

B237C Chrysler Code - Data Communication Radio Input Circuit High

Quick Answer

The B237C Chrysler code indicates a problem with the data communication radio input circuit being too high. Common causes include Faulty radio unit, Damaged wiring or connectors in the radio input circuit, Malfunctioning control module. 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
B237C Chrysler indicates Data Communication Radio Input Circuit High.
Common causes
Common causes include Faulty radio unit, Damaged wiring or connectors in the radio input circuit, Malfunctioning control module.
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 16, 2024
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Code B237C Chrysler Description

The B237C Chrysler code indicates a problem with the data communication radio input circuit being too high. In modern vehicles, various systems communicate with each other through data networks to ensure proper functioning. The radio input circuit is responsible for receiving signals from the radio unit and transmitting them to other systems in the vehicle. When this circuit is reading a high voltage signal consistently, it can lead to communication issues between the radio unit and other systems, affecting the overall performance of the vehicle.

OBDII Code B237C Chrysler - Data Communication Radio Input Circuit High
B237C Chrysler Code - Data Communication Radio Input Circuit High

Common Causes of B237C Chrysler

  1. Faulty radio unit
  2. Damaged wiring or connectors in the radio input circuit
  3. Malfunctioning control module
  4. Software glitch in the vehicle's system
  5. Electrical issues such as a short circuit or voltage spike

Symptoms of B237C Chrysler

  1. Radio not functioning properly
  2. No sound or distorted sound from the radio
  3. Inability to change radio stations or settings
  4. Communication errors with other vehicle systems
  5. Illumination of the check engine light

How to Fix B237C Chrysler

  1. Begin by conducting a thorough inspection of the radio unit, wiring, and connectors to identify any visible damage or loose connections.
  2. Use a multimeter to test the voltage levels in the radio input circuit to determine if it is indeed reading high.
  3. If necessary, replace the radio unit or repair any damaged wiring or connectors in the circuit.
  4. Clear the diagnostic trouble codes from the vehicle's system using a scan tool and test the radio unit to ensure proper functionality.
  5. Perform a final test drive to confirm that the issue has been resolved and that all systems are communicating correctly.

Cost to Fix B237C Chrysler

The typical repair costs for addressing a B237C Chrysler code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts such as a new radio unit or wiring components can range from $100 to $500, while labor costs can add an additional $100 to $300. Overall, the total repair cost for this issue may fall between $200 and $800. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your vehicle's make and model.

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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 B237C Chrysler Code

1. What does the OBDII code B237C mean on a Chrysler vehicle?

B237C indicates a "Data Communication Radio Input Circuit High" issue, meaning the vehicle's computer has detected an abnormally high voltage in the communication circuit related to the radio.

2. What are the common symptoms of the B237C code?

Symptoms may include the radio not functioning, a loss of infotainment features, intermittent audio issues, or no response from the radio controls.

3. What causes the B237C code to appear?

Common causes include a faulty radio unit, damaged wiring or connectors in the communication circuit, or a malfunctioning control module.

4. Can a blown fuse cause the B237C code?

Yes, a blown fuse in the radio or communication circuit can disrupt the system and trigger this code.

5. How do I diagnose the B237C code?

Start by checking the wiring and connectors for damage or corrosion, inspect related fuses, and use a scan tool to monitor the communication circuit's voltage levels.

6. Is the B237C code serious?

While it doesn't typically affect the vehicle's drivability, it can disable important infotainment and communication features, which could become inconvenient.

7. How can I fix the B237C code?

Repairs may include replacing damaged wiring, repairing or replacing the radio unit, or reprogramming the control module if necessary.

8. Can software updates resolve the B237C code?

In some cases, a software update for the radio or control module may resolve communication issues causing the code.

9. How much does it cost to fix the B237C code?

Depending on the cause, repairs can range from $50 for minor wiring fixes to $500 or more if the radio or control module needs replacement.

10. Can I drive my car with the B237C code active?

Yes, the vehicle is typically safe to drive, but you may lose access to certain infotainment functions until the issue is resolved.

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