B3377
Left Front Window Up Switch Circuit Low
B3377 is an OBD-II diagnostic trouble code meaning: Left Front Window Up Switch Circuit Low. Common causes: wiring harness damage, window up button malfunction. Estimated repair cost: $22–111.
Symptoms
- The left front window doesn't work
- Intermittent operation of the window regulator
- The malfunction indicator on the instrument panel lights up
Causes
- Wiring harness damage
- Window up button malfunction
- Poor contact in the connector
- Short circuit to ground
- Malfunction of the power window control unit
How to Fix
- Check wiring harness for damage
- Check the window up button for functionality.
- Clean contacts in connectors
- Check continuity with a multimeter
- If necessary, replace the button or wiring harness
Related codes
Error B3377 by Vehicle Brand
FAQ
What does the B3377 code mean?
B3377 is an OBD-II diagnostic trouble code that indicates: Left Front Window Up Switch Circuit Low
What causes a B3377 error code?
The most common causes of B3377 include: Wiring harness damage; Window up button malfunction; Poor contact in the connector; Short circuit to ground.
How do I fix a B3377 diagnostic trouble code?
To fix B3377: Check wiring harness for damage. Check the window up button for functionality.. Clean contacts in connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3377?
Limited driving only, diagnose soon
How much does it cost to fix B3377?
The estimated repair cost for B3377 is $22–111. Actual cost depends on your vehicle, location, and labor rates.
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