C1935 – OBD-II DTC

OBD-II DTC C1935 – Chime Circuit Failure

DTC C1935 meaning

DTC C1935 refers to a Chime Circuit Failure in the On-Board Diagnostics II (OBD-II) system. This code indicates that there is an issue with the chime or alert system in the vehicle, which is responsible for providing audible warnings to the driver. The failure can affect various alerts, including seatbelt reminders, door ajar warnings, and other critical notifications.

DTC C1935 symptoms

Common symptoms associated with DTC C1935 may include:

• No audible chimes or alerts when warnings are triggered.
• Inconsistent chime operation, where some alerts may sound while others do not.
• Dashboard warning lights may illuminate without accompanying chimes.
• Potential issues with other electronic systems that rely on the chime circuit.

DTC C1935 causes

The causes of DTC C1935 can vary, but typical reasons include:

• Faulty chime module or speaker.
• Wiring issues, such as damaged or corroded connections.
• Faulty body control module (BCM) that manages the chime circuit.
• Software glitches or programming errors in the vehicle’s computer systems.

DTC C1935 seriousness

DTC C1935 is considered a moderate issue. While it may not directly affect the vehicle’s drivability, it can lead to a lack of important audible warnings that are crucial for safe operation. Ignoring this code may result in missing critical alerts, which could compromise driver awareness and safety.

How to diagnose DTC C1935

To diagnose DTC C1935, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the C1935 code.
2. Inspect the chime module and speaker for visible damage or disconnection.
3. Check the wiring and connectors associated with the chime circuit for corrosion or breaks.
4. Test the chime module by applying power directly to see if it functions.
5. Examine the body control module for any fault codes or issues.
6. Review the vehicle’s service manual for specific diagnostic procedures related to the chime circuit.

How to fix DTC C1935 step-by-step instructions

To fix DTC C1935, follow these steps:

1. Confirm the diagnosis by ensuring the chime module and speaker are functioning properly.
2. Repair or replace any damaged wiring or connectors found during inspection.
3. If the chime module is faulty, replace it with a new or refurbished unit.
4. Reprogram or update the body control module if necessary, following manufacturer guidelines.
5. Clear the DTC using an OBD-II scanner and test the system to ensure proper operation.

How to erase DTC C1935

To erase DTC C1935, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition key to the “On” position without starting the engine.
3. Access the diagnostic menu on the scanner and select the option to clear or erase codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and start the vehicle to check if the code reappears.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.