📖 What Does B0091 Mean?
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
Symptoms
Windows may not move up or down, or may move slowly or erratically.
Common Causes
Faulty power window relay, faulty window switch, wiring issue, or blown fuse.
Possible Solutions
1. Check the fuse box for a blown fuse and replace it if necessary. 2. Check the wiring harness for damage or corrosion and repair or replace as needed. 3. Test the power window relay and replace it if faulty. 4. Test the window switch and replace it if faulty.
Recommended Parts & Tools
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📦 Parts Needed
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Frequently Asked Questions about B0091
How serious is B0091?
This code has a medium severity level. This should be diagnosed and repaired soon to prevent further issues.
Can I drive with B0091?
You can typically drive short distances, but have it diagnosed as soon as possible.
How much does it cost to fix B0091?
Repair costs vary depending on the root cause, but typically range from $100-300 including parts and labor.
Related Diagnostic Codes
Other codes that may appear with B0091
Airbag System Malfunction (B0000)
Body System Code B0001: Climate Control Malfunction
Body System Code B0002: Door Locks Malfunction
Body System Code B0003: Windows
Seat Position Sensor Malfunction
Body System Code B0005: Lighting Malfunction
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system