B1D09
Driver Mirror Position Sensor Power Supply Circuit Low
B1D09 is an OBD-II diagnostic trouble code meaning: Driver Mirror Position Sensor Power Supply Circuit Low. Common causes: open or short circuit in wiring harness, mirror position sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Inability to automatically adjust the driver's mirror
- Malfunctions in the mirror position memory
- The malfunction indicator on the instrument panel lights up
Causes
- Open or short circuit in wiring harness
- Mirror position sensor malfunction
- Problems with the control unit
- Contact corrosion
How to Fix
- Check the wiring harness for breaks and short circuits
- Check the voltage at the mirror position sensor
- Replace the mirror position sensor if necessary
- Check the control unit for errors
Related codes
FAQ
What does the B1D09 code mean?
B1D09 is an OBD-II diagnostic trouble code that indicates: Driver Mirror Position Sensor Power Supply Circuit Low
What causes a B1D09 error code?
The most common causes of B1D09 include: Open or short circuit in wiring harness; Mirror position sensor malfunction; Problems with the control unit; Contact corrosion.
How do I fix a B1D09 diagnostic trouble code?
To fix B1D09: Check the wiring harness for breaks and short circuits. Check the voltage at the mirror position sensor. Replace the mirror position sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1D09?
Do not drive — repair immediately
How much does it cost to fix B1D09?
The estimated repair cost for B1D09 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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