DTC Code B1D10 – What does this code mean?

<ul> <li><a href="/problems/engine-warning-light-on"><b>Engine Light ON</b></a>: The engine light or service engine soon warning light may illuminate, indicating a potential issue with the driver mirror horizontal position sensor input circuit.</li> <li><b>Driver Mirror Malfunction</b>: The driver side mirror may not adjust horizontally, or may adjust erratically, due to a high input circuit issue.</li> <li><b>Unresponsive Mirror Controls</b>: The controls for adjusting the driver mirror horizontally may become unresponsive, linked to the sensor input circuit being high.</li> </ul>

<ul><li>The driver mirror may be faulty, leading to incorrect sensor readings and triggering the error code.</li><li>An open or shorted harness in the driver mirror can disrupt the signal, causing the circuit to register as high.</li><li>Poor electrical connections in the driver mirror circuit can result in intermittent or incorrect signals being sent to the control module.</li><li>A malfunctioning Driver Door Module (DDM) can fail to process the sensor input correctly, leading to the error code.</li></ul>

<ul> <li><b>Verify DTC Code</b>: Confirm the presence of DTC B1D10 using a diagnostic scanner. Clear the code and see if it returns to ensure it's not a false trigger.</li> <li><b>Inspect Wiring and Connectors</b>: Check the wiring and connectors related to the driver mirror horizontal position sensor for any signs of damage, corrosion, or disconnection.</li> <li><b>Test Sensor Voltage</b>: Measure the voltage at the driver mirror horizontal position sensor. A high input may indicate a short to power or an internal sensor fault.</li> <li><b>Check Ground Connections</b>: Ensure that all ground connections for the mirror system are secure and free of corrosion, as poor grounding can cause high input readings.</li> <li><b>Inspect Mirror Control Module</b>: Examine the mirror control module for any signs of malfunction or damage. Replace if necessary.</li> <li><b>Perform Sensor Replacement</b>: If all other components are functioning correctly, consider replacing the driver mirror horizontal position sensor.</li> <li><b>Re-test System</b>: After repairs, clear the DTC and perform a system test to ensure the issue is resolved and the code does not return.</li></ul>

<p>The DTC B1D10 indicates a <b>high input circuit</b> issue with the driver mirror's horizontal position sensor. This is a <b>moderate</b> concern as it affects the driver's ability to adjust the mirror for optimal visibility, potentially compromising safety. Delayed repair may lead to <b>reduced situational awareness</b> while driving, especially in lane changes or reversing, increasing the risk of accidents.</p>