Introduction
The B1667 diagnostic trouble code (DTC) indicates a problem within the driver-side power mirror system, specifically concerning the up/down motor. This motor is responsible for adjusting the mirror glass vertically, allowing the driver to achieve optimal visibility. When the vehicle's computer (typically the Body Control Module or a dedicated mirror control module) detects that this motor is stalled or not functioning correctly, the B1667 code is triggered, potentially impacting driver safety and convenience. Diagnosing and addressing this issue promptly is crucial to restoring full functionality to the power mirror.
Comprehensive Table: B1667 Mirror Driver Up/Down Motor Stalled
| Topic | Description | Possible Causes |
|---|---|---|
| Definition of B1667 | Diagnostic Trouble Code (DTC) indicating a problem with the driver-side power mirror's up/down motor. The control module has detected that the motor is not moving as commanded, or that it has stopped prematurely. | Motor Failure: Internal motor damage or wear. Wiring Issues: Open circuits, short circuits, or high resistance in the wiring harness. Connector Problems: Corrosion or loose connections in the mirror motor connector or related connectors. Mirror Switch Failure: Faulty mirror switch preventing proper signal transmission. Control Module Issue: Rare, but a faulty Body Control Module (BCM) or mirror control module could be the cause. Mechanical Obstruction: Something physically blocking the mirror movement. |
| Symptoms of B1667 | The most obvious symptom is the inability to adjust the driver-side mirror vertically (up and down). Other potential symptoms include: Mirror moves erratically or not at all. Clicking or grinding noises from the mirror when attempting to adjust it. The mirror may move partially but stops before reaching its full range of motion. The mirror may be stuck in one position. The mirror control switch may feel loose or unresponsive. Check engine light may be illuminated (though not always the case with body-related codes). | See Possible Causes |
| Diagnostic Steps | A systematic approach is crucial for diagnosing the B1667 code: 1. Visual Inspection: Check the mirror assembly, wiring, and connectors for any obvious damage or corrosion. 2. Scan Tool: Use a scan tool to retrieve the B1667 code and any other related codes. 3. Wiring Diagram: Consult a wiring diagram for the power mirror system to understand the circuit layout. 4. Voltage and Ground Testing: Use a multimeter to verify voltage and ground at the mirror motor connector. 5. Continuity Testing: Check the continuity of the wiring between the mirror switch, control module, and mirror motor. 6. Mirror Switch Testing: Test the mirror switch for proper functionality using a multimeter. 7. Motor Testing: Attempt to manually move the mirror glass. If it's completely stuck, it could indicate a jammed motor. You can also try applying direct power to the motor to see if it responds. 8. Control Module Diagnosis: If all other components test good, suspect a faulty control module. This often requires specialized diagnostic equipment. | See Possible Causes |
| Common Mistakes | Replacing the mirror motor without thoroughly testing the wiring and switch. Ignoring corrosion in connectors. Assuming the control module is faulty without ruling out other possibilities. Failing to consult a wiring diagram. Not checking for mechanical obstructions. Incorrectly interpreting scan tool data. * Not verifying proper ground connections. | N/A |
| Tools Required | Scan Tool (capable of reading body codes) Multimeter Wiring Diagram for the specific vehicle Basic hand tools (screwdrivers, pliers, socket set) Wire stripper/crimper Connector cleaning tools (wire brush, electrical contact cleaner) Test light (optional) Power probe (optional) | N/A |
| Related DTCs | While B1667 specifically relates to the driver-side up/down motor, other related DTCs might indicate broader issues within the power mirror system. These could include: B1666: Mirror Driver Left/Right Motor Stalled B1668: Mirror Passenger Up/Down Motor Stalled B1669: Mirror Passenger Left/Right Motor Stalled B1670: Mirror Circuit Malfunction B1671: Mirror Feedback Circuit Malfunction Codes related to the mirror switch circuit | See Possible Causes |
| Severity Level | Moderate. While the B1667 code doesn't typically prevent the vehicle from operating, it can significantly impair the driver's visibility, particularly in blind spots. This can increase the risk of accidents, especially when changing lanes or maneuvering in tight spaces. Addressing the issue promptly is recommended for safety reasons. | N/A |
| Repair Costs | Repair costs can vary widely depending on the cause of the problem and the vehicle's make and model. Minor Repairs (wiring, connectors): $50 - $200 Mirror Switch Replacement: $50 - $200 Mirror Motor Replacement: $100 - $400 (parts and labor) Complete Mirror Assembly Replacement: $200 - $600+ (parts and labor) * Control Module Replacement (rare): $300 - $800+ (parts, labor, and programming) These are estimates and actual costs may vary. Obtaining quotes from multiple repair shops is always recommended. | N/A |
Detailed Explanations
Definition of B1667: The B1667 code is a specific diagnostic code that your vehicle's computer sets when it detects a problem with the driver-side power mirror's ability to move up and down. Essentially, the computer is saying that the motor responsible for this vertical movement is either not responding to commands or is encountering excessive resistance, preventing it from functioning as intended. This code alerts you to a potential issue within the mirror's electrical or mechanical components.
Symptoms of B1667: The most noticeable symptom is the inability to adjust the driver-side mirror vertically. You might try to use the mirror switch, but the mirror simply won't move up or down. Other signs can include erratic mirror movement, where it moves partially or not at all, or strange noises like clicking or grinding coming from the mirror assembly when you try to adjust it. Sometimes, the mirror might be stuck in a fixed position, and the control switch may feel unresponsive. While less common, a check engine light might also illuminate, although this is less frequent with body-related codes.
Diagnostic Steps: Diagnosing B1667 requires a systematic approach. Start with a visual inspection of the mirror assembly, wiring, and connectors for any obvious damage or corrosion. Next, use a scan tool to retrieve the B1667 code and any other related codes that might provide clues. Consult a wiring diagram specific to your vehicle to understand the power mirror system's circuit layout. Use a multimeter to test for voltage and ground at the mirror motor connector, ensuring the motor is receiving power. Check the continuity of the wiring between the mirror switch, control module, and mirror motor to identify any breaks or shorts. Test the mirror switch itself for proper functionality using a multimeter. If possible, try manually moving the mirror glass to see if it's mechanically blocked. You can also try applying direct power to the motor to see if it responds. If all other components test good, suspect a faulty control module, although this is less common and often requires specialized diagnostic equipment.
Common Mistakes: A common mistake is replacing the mirror motor prematurely without thoroughly checking the wiring and switch. Corrosion in connectors is often overlooked, leading to misdiagnosis. Avoid assuming the control module is faulty without ruling out other possibilities, as this can be an expensive and unnecessary repair. Failing to consult a wiring diagram can lead to incorrect assumptions about the circuit. Don't forget to check for mechanical obstructions that might be preventing the mirror from moving. Incorrectly interpreting scan tool data or not verifying proper ground connections can also lead to misdiagnosis.
Tools Required: To diagnose and repair the B1667 code, you'll need a few essential tools. A scan tool capable of reading body codes is crucial for retrieving the DTC. A multimeter is necessary for testing voltage, ground, and continuity. A wiring diagram specific to your vehicle is essential for understanding the circuit layout. Basic hand tools like screwdrivers, pliers, and a socket set will be needed for disassembly. A wire stripper/crimper will be helpful for repairing any damaged wiring. Connector cleaning tools like a wire brush and electrical contact cleaner are important for addressing corrosion. A test light or power probe can be optional but helpful for testing circuits.
Related DTCs: While B1667 specifically pinpoints the driver-side up/down motor, other related DTCs can indicate broader issues within the power mirror system. B1666 relates to the driver-side left/right motor, while B1668 and B1669 concern the passenger-side up/down and left/right motors, respectively. B1670 indicates a general mirror circuit malfunction, and B1671 signals a problem with the mirror feedback circuit. Additionally, codes related to the mirror switch circuit can also be relevant. Analyzing these related codes can provide a more comprehensive understanding of the problem.
Severity Level: The severity of the B1667 code is considered moderate. While the code doesn't typically prevent the vehicle from operating, it significantly impacts the driver's visibility, especially in blind spots. This impaired visibility can increase the risk of accidents, particularly when changing lanes or maneuvering in tight spaces. Therefore, addressing the issue promptly is highly recommended for safety reasons.
Repair Costs: Repair costs for B1667 can vary significantly depending on the root cause of the problem and the vehicle's make and model. Minor repairs involving wiring or connectors might range from $50 to $200. A mirror switch replacement could cost between $50 and $200. Replacing the mirror motor itself typically ranges from $100 to $400, including parts and labor. A complete mirror assembly replacement can be more expensive, ranging from $200 to $600 or more, depending on the mirror features (e.g., heated, turn signals). In rare cases, if the control module is the culprit, replacement can cost $300 to $800 or more, including parts, labor, and programming. Remember that these are just estimates, and obtaining quotes from multiple repair shops is always a good idea.
Frequently Asked Questions
What does the B1667 code mean? It means the driver-side power mirror's up/down motor is stalled or not functioning correctly, preventing vertical adjustment. The control module has detected a fault in the motor circuit.
Can I fix B1667 myself? Yes, if you have basic automotive knowledge, tools, and a wiring diagram, you can attempt to diagnose and repair the issue. However, professional assistance is recommended for complex electrical problems.
Will B1667 affect my car's performance? No, it won't affect the engine or other mechanical components, but it will impair your ability to adjust the driver-side mirror vertically, impacting visibility.
Is it safe to drive with the B1667 code? Driving with a malfunctioning mirror can compromise safety, especially when changing lanes or parking. It is recommended to address the issue as soon as possible.
What is the first thing I should check? Start by visually inspecting the mirror assembly, wiring, and connectors for any signs of damage or corrosion.
Conclusion
The B1667 code indicates a problem with the driver-side power mirror's up/down motor, potentially impacting driver safety. A systematic diagnostic approach, starting with visual inspection and progressing to electrical testing, is crucial for identifying the root cause and restoring full functionality to the power mirror system.