B3397
Left Rear Window Up Switch Circuit Low
B3397 is an OBD-II diagnostic trouble code meaning: Left Rear Window Up Switch Circuit Low. Common causes: faulty window up switch, open or short circuit in wiring harness. Estimated repair cost: $6–56.
Symptoms
- The left rear window doesn't work
- Intermittent operation of the window regulator
- The glass goes up/down spontaneously
Causes
- Faulty window up switch
- Open or short circuit in wiring harness
- Poor contact in the connector
- Problems with the power window control unit
How to Fix
- Check the voltage in the Workers switch circuit
- Inspect the wiring harness for damage
- Check contacts in connectors
- Replace the faulty switch if necessary
Related codes
Error B3397 by Vehicle Brand
FAQ
What does the B3397 code mean?
B3397 is an OBD-II diagnostic trouble code that indicates: Left Rear Window Up Switch Circuit Low
What causes a B3397 error code?
The most common causes of B3397 include: Faulty window up switch; Open or short circuit in wiring harness; Poor contact in the connector; Problems with the power window control unit.
How do I fix a B3397 diagnostic trouble code?
To fix B3397: Check the voltage in the Workers switch circuit. Inspect the wiring harness for damage. Check contacts in connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3397?
Limited driving only, diagnose soon
How much does it cost to fix B3397?
The estimated repair cost for B3397 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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