DTC Code C1141 – What does this code mean?

<ul> <li><b>Anti-Lock Brake System (ABS) Warning Light ON</b>: The ABS warning light illuminates when the brake pressure sensor switch malfunctions. This can indicate issues with the ABS system, potentially affecting braking performance.</li> <li><b>Engine Light ON (or Service Engine Soon Warning Light)</b>: The engine light or service engine soon warning light may turn on due to a fault in the brake pressure sensor switch. This can be linked to the vehicle's overall braking system and may require immediate attention.</li> </ul>

<ul><li>The brake pressure sensor switch may be faulty, leading to incorrect readings or failure to communicate with the vehicle's control module.</li><li>An open or shorted harness in the brake pressure sensor switch can disrupt the signal, causing the error code to trigger.</li><li>Poor electrical connections in the brake pressure sensor switch circuit can result in intermittent or failed communication, leading to the error code.</li></ul>

<ul> <li><b>Initial Inspection</b>: Visually inspect the brake pressure sensor switch located on the brake master cylinder for any obvious signs of damage or disconnection.</li> <li><b>Check Electrical Connections</b>: Ensure all electrical connections to the brake pressure sensor switch are secure and free of corrosion.</li> <li><b>Scan for Additional Codes</b>: Use an OBD-II scanner to check for any additional DTCs that may provide further insight into the issue.</li> <li><b>Test Sensor Voltage</b>: Using a multimeter, measure the voltage at the brake pressure sensor switch. Compare the readings to the manufacturer's specifications.</li> <li><b>Inspect Brake Fluid Level</b>: Check the brake fluid level in the master cylinder. Low brake fluid can affect the sensor's performance.</li> <li><b>Perform Brake System Bleed</b>: If air is suspected in the brake lines, perform a brake system bleed to ensure proper hydraulic pressure.</li> <li><b>Replace Sensor if Necessary</b>: If the sensor is found to be faulty after testing, replace the brake pressure sensor switch and clear the DTC code.</li> <li><b>Road Test</b>: Conduct a road test to ensure the brake system is functioning correctly and the DTC code does not reappear.</li></ul>

<p>The DTC code C1141 indicates an issue with the Brake Pressure Sensor Switch. This is a critical problem as it directly affects the vehicle's braking system.</p><ul><li><b>Immediate Actions:</b> Inspect and replace the brake pressure sensor switch immediately.</li><li><b>Potential Risks:</b> Delayed repair can lead to brake failure, increasing the risk of accidents.</li></ul>