B1667 – OBD-II DTC

OBD-II DTC B1667 – Mirror Driver Up/Down Motor Stalled

DTC B1667 meaning

DTC B1667 refers to a diagnostic trouble code indicating that the mirror driver up/down 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 mirror position is not functioning correctly, it triggers this code.

DTC B1667 symptoms

Common symptoms associated with DTC B1667 may include:

• The side mirror does not adjust up or down.
• Unusual noises coming from the mirror assembly when attempting to adjust it.
• Mirror position may be stuck or unresponsive.
• Other mirror functions, such as heating or folding, may still work.

DTC B1667 causes

Several factors can lead to the occurrence of DTC B1667, including:

• A faulty mirror motor or actuator.
• Wiring issues, such as damaged or corroded connectors.
• Short circuits or open circuits in the mirror control circuit.
• Faulty control switches or modules.
• Mechanical obstructions preventing the mirror from moving.

DTC B1667 seriousness

The seriousness of DTC B1667 can vary based on the vehicle’s use and the importance of the mirror’s functionality. While it may not affect the vehicle’s overall operation, it can compromise safety by limiting the driver’s visibility. Therefore, it is advisable to address this issue promptly to ensure safe driving conditions.

How to diagnose DTC B1667

To diagnose DTC B1667, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1667 code.
2. Inspect the mirror motor and wiring for visible damage or corrosion.
3. Test the mirror control switch for proper operation.
4. Check for any mechanical obstructions that may hinder the mirror’s movement.
5. Perform a continuity test on the wiring harness to ensure there are no breaks.
6. Test the mirror motor directly by applying power to see if it operates.

How to fix DTC B1667 step-by-step instructions

To fix DTC B1667, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety.
2. Remove the mirror assembly from the vehicle.
3. Inspect the mirror motor for any signs of damage or wear.
4. Check the wiring harness for any frayed or broken wires.
5. If the motor is faulty, replace it with a new one.
6. Repair any damaged wiring or connectors as needed.
7. Reinstall the mirror assembly and reconnect the battery.
8. Clear the DTC using an OBD-II scanner and test the mirror operation.

How to erase DTC B1667

To erase DTC B1667, 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 “Erase Codes” or “Clear DTCs” option on the scanner.
4. Confirm the action to clear the trouble codes.
5. Disconnect the scanner and start the vehicle to ensure the code does not return.

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