B3387
Right Front Window Up Switch Circuit Low
B3387 is an OBD-II diagnostic trouble code meaning: Right Front Window Up Switch Circuit Low. Common causes: switch failure, open or short circuit in wiring harness. Estimated repair cost: $22–89.
Symptoms
- The right front window doesn't work
- Intermittent operation of the window regulator
- Switch backlight flashing
Causes
- Switch failure
- Open or short circuit in wiring harness
- Contact corrosion
- Problems with the power window control unit
How to Fix
- Check the switch for mechanical damage
- Test the switch circuit with a multimeter
- Inspect the wiring harness for damage
- Clean contacts from corrosion
- If necessary, replace the switch or control unit
Related codes
Error B3387 by Vehicle Brand
FAQ
What does the B3387 code mean?
B3387 is an OBD-II diagnostic trouble code that indicates: Right Front Window Up Switch Circuit Low
What causes a B3387 error code?
The most common causes of B3387 include: Switch failure; Open or short circuit in wiring harness; Contact corrosion; Problems with the power window control unit.
How do I fix a B3387 diagnostic trouble code?
To fix B3387: Check the switch for mechanical damage. Test the switch circuit with a multimeter. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3387?
Limited driving only, diagnose soon
How much does it cost to fix B3387?
The estimated repair cost for B3387 is $22–89. Actual cost depends on your vehicle, location, and labor rates.
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