B1775 – OBD-II DTC

OBD-II DTC B1775 – Mirror Driver Up Circuit Short To Battery

DTC B1775 meaning

DTC B1775 refers to a diagnostic trouble code indicating a short circuit in the driver side mirror’s up circuit to the battery. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components for faults. When the vehicle’s computer detects an abnormal voltage or resistance in the circuit responsible for controlling the upward movement of the driver’s side mirror, it triggers this code.

DTC B1775 symptoms

Common symptoms associated with DTC B1775 may include:

• Driver’s side mirror not adjusting upward
• Mirror control switch malfunctioning
• Other mirror functions may work intermittently
• Warning lights on the dashboard related to the mirror system

DTC B1775 causes

Several factors can lead to the triggering of DTC B1775, including:

• Short circuit in the wiring harness
• Faulty mirror control switch
• Defective mirror motor
• Corroded or damaged connectors
• Issues with the vehicle’s body control module (BCM)

DTC B1775 seriousness

DTC B1775 is considered a moderate issue. While it may not affect the vehicle’s overall drivability, it can hinder the driver’s ability to adjust the mirror properly, which is crucial for safe driving. Ignoring this code may lead to further electrical issues or damage to the mirror system.

How to diagnose DTC B1775

To diagnose DTC B1775, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1775 code.
2. Inspect the wiring and connectors related to the driver’s side mirror for any visible damage or corrosion.
3. Test the mirror control switch for proper operation.
4. Check the mirror motor for functionality.
5. Examine the body control module for any faults or issues.

How to fix DTC B1775 step-by-step instructions

To fix DTC B1775, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on electrical components.
2. Inspect and repair any damaged wiring or connectors found during diagnosis.
3. Replace the mirror control switch if it is found to be faulty.
4. Test and replace the mirror motor if it is not functioning correctly.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test the mirror adjustment functions to ensure they operate correctly.

How to erase DTC B1775

To erase DTC B1775, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the vehicle’s ignition without starting the engine.
3. Navigate to the trouble codes section on the scanner.
4. Select the option to clear or erase the codes.
5. Confirm the action and wait for the scanner to complete the process.
6. Disconnect the scanner and start the vehicle to ensure the code does not return.

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