B1667

Mirror Driver Up/Down Motor Stalled

Body Chassis/Safety Power Mirror Motor Control 🟢 Low — Fix at next service ✅ Safe to Drive
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What This Actually Means

In plain language — no jargon

The electric motor that moves your side mirror up and down has stopped responding to commands, like a power window motor that won't budge. The ECU detected excessive current draw or lack of movement, indicating the motor is jammed or failed.

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Symptoms You May Notice

3 known symptoms for this code
Mirror up/down controls don't work or respond slowly
Grinding or clicking noise from mirror housing
Mirror stuck in one position
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How Your ECU Detects This

Technical sensor logic and voltage thresholds

The ECU monitors motor current draw and movement completion time via position feedback sensors. When current exceeds safe limits for too long or the mirror fails to reach end-of-travel within expected time, a stall condition is detected.

Voltage & Parameter Thresholds

ParameterNormal RangeFault Condition
Motor Current Draw 0.5-3.0 amps during operation >4.5 amps sustained for >2 seconds
Movement Completion Time 2-5 seconds full travel >10 seconds or no position change
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Diagnostic & DIY Fix Guide

Check these in order — from cheapest to most complex
1
Mirror glass/housing debris
Remove and inspect mirror for ice, debris, or obstructions blocking motor movement.
2
Mirror motor connector
Disconnect and reconnect the motor harness to clear temporary electrical faults or corrosion.
3
Mirror motor assembly
Replace the entire motor unit if testing confirms internal mechanical failure or winding damage.
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When to See a Professional Mechanic

Not all fault codes are safe to DIY

Code B1667 is a low-severity fault. Your vehicle is generally safe to drive to a workshop for diagnosis. However, do not ignore it indefinitely — low-severity codes often indicate developing problems that become expensive if neglected. Book a diagnostic appointment within 2–4 weeks. If you notice any additional symptoms (rough running, power loss, unusual smells), treat it as higher priority.

Safety note: OBD-II codes identify the system or circuit where a fault was detected — they do not always identify the exact failed component. A professional mechanic using live sensor data will diagnose the root cause more accurately than replacing parts based on the code alone.
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How to Clear Code B1667

What happens after you fix the fault

Once the fault is repaired, B1667 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.

The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.

✅ Safe to Clear When
  • Fault has been diagnosed and repaired
  • You want to confirm the repair worked
  • Code appeared after a sensor was cleaned
⚠️ Do Not Clear When
  • Preparing for an emissions/PUC test
  • Root cause is still undiagnosed
  • Check engine light is flashing
Emissions test note: Clearing codes resets OBD readiness monitors. Most vehicles need 50–100 km of mixed driving before monitors complete. Do not clear codes immediately before an emissions or PUC inspection.