B1733 – OBD-II DTC

OBD-II DTC B1733 – Mirror Driver Vertical Switch Circuit Failure

DTC B1733 meaning

DTC B1733 refers to a fault in the mirror driver vertical switch circuit. This diagnostic trouble code indicates that there is a malfunction in the circuit responsible for controlling the vertical movement of the side mirror. The issue may stem from a variety of electrical or mechanical failures within the system.

DTC B1733 symptoms

Common symptoms associated with DTC B1733 may include:

• Inability to adjust the side mirror vertically
• Mirror position remains fixed
• Intermittent or erratic mirror movement
• Warning lights on the dashboard related to the mirror system

DTC B1733 causes

Several factors can lead to the occurrence of DTC B1733, including:

• Faulty mirror driver switch
• Wiring issues, such as shorts or open circuits
• Defective mirror motor
• Corrosion or poor connections in the circuit
• Faulty body control module (BCM)

DTC B1733 seriousness

The seriousness of DTC B1733 can vary. While it may not pose an immediate safety risk, it can affect the driver’s ability to adjust mirrors properly, which is crucial for safe driving. It is advisable to address this issue promptly to ensure optimal vehicle operation and safety.

How to diagnose DTC B1733

To diagnose DTC B1733, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the code.
2. Inspect the mirror driver switch for physical damage or wear.
3. Check the wiring and connectors for signs of corrosion or damage.
4. Test the mirror motor for functionality.
5. Examine the body control module for faults.
6. Perform continuity tests on the circuit to identify any breaks or shorts.

How to fix DTC B1733 step-by-step instructions

To fix DTC B1733, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety.
2. Inspect and replace the mirror driver switch if it is faulty.
3. Repair or replace any damaged wiring or connectors.
4. Test and replace the mirror motor if it is not functioning properly.
5. Check the body control module and replace it if necessary.
6. Reconnect the battery and clear the DTC using an OBD-II scanner.
7. Test the mirror adjustment functionality to ensure the issue is resolved.

How to erase DTC B1733

To erase DTC B1733, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the DTC menu on the scanner.
4. Select the option to clear or erase trouble 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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