B1670 – OBD-II DTC

OBD-II DTC B1670 – Mirror Passenger Right/Left Motor Stalled

DTC B1670 meaning

DTC B1670 refers to a diagnostic trouble code indicating that the passenger side mirror motor has stalled. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components for faults. When the system detects that the motor responsible for adjusting the passenger side mirror is not functioning correctly, it triggers this code.

DTC B1670 symptoms

Common symptoms associated with DTC B1670 may include:

• The passenger side mirror does not adjust or move.
• Unusual noises coming from the mirror area when attempting to adjust it.
• Other mirror functions, such as heating or folding, may also be affected.
• Warning lights may illuminate on the dashboard, indicating a fault.

DTC B1670 causes

Several factors can lead to the occurrence of DTC B1670, including:

• A faulty passenger side mirror motor.
• Wiring issues, such as frayed or damaged wires.
• Corrosion or poor connections in the electrical system.
• Faulty switch or control module that operates the mirror.
• Mechanical obstruction preventing the mirror from moving.

DTC B1670 seriousness

The seriousness of DTC B1670 can vary. While it may not affect the vehicle’s overall performance, it can impact the driver’s visibility and safety. A non-functioning mirror can lead to blind spots, increasing the risk of accidents. Therefore, it is advisable to address this issue promptly.

How to diagnose DTC B1670

To diagnose DTC B1670, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1670 code.
2. Inspect the passenger side mirror motor for any visible damage or obstruction.
3. Check the wiring and connectors for signs of wear, corrosion, or loose connections.
4. Test the mirror motor by applying direct power to see if it operates.
5. Examine the switch or control module for proper functionality.

How to fix DTC B1670 step-by-step instructions

To fix DTC B1670, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on electrical components.
2. Remove the passenger side mirror cover to access the motor and wiring.
3. Inspect and repair any damaged wiring or connectors.
4. If the motor is faulty, replace it with a new or refurbished unit.
5. Reassemble the mirror and cover, ensuring all components are securely in place.
6. Reconnect the battery and test the mirror’s functionality.

How to erase DTC B1670

To erase DTC B1670 from the vehicle’s computer, 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 option to clear or erase trouble codes on the scanner.
4. Confirm the action to erase the DTC B1670.
5. Disconnect the scanner and start the vehicle to ensure the code does not reappear.

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