B3527
Window Lockout Switch Circuit Low
B3527 is an OBD-II diagnostic trouble code meaning: Window Lockout Switch Circuit Low. Common causes: interlock switch contact stuck or shorted, short circuit in switch signal circuit. Estimated repair cost: $11–78.
Symptoms
- Rear door windows are permanently locked
- The window lock function does not work
- The indicator on the lock button is on
- The rear windows are not controlled by any buttons
- The error code is always present
Causes
- Interlock switch contact stuck or shorted
- Short circuit in switch signal circuit
- Moisture or contamination of the switch
- Switch contact wear
- Malfunction of the power window control unit
How to Fix
- Read error codes and determine the type of fault
- Check the power window lock switch for sticking.
- Measure the voltage on the signal wire of the switch
- Clean the switch with contact lubricant or replace
- Check wiring from switch to module
- Reset codes and check the lock operation
Related codes
Error B3527 by Vehicle Brand
FAQ
What does the B3527 code mean?
B3527 is an OBD-II diagnostic trouble code that indicates: Window Lockout Switch Circuit Low
What causes a B3527 error code?
The most common causes of B3527 include: Interlock switch contact stuck or shorted; Short circuit in switch signal circuit; Moisture or contamination of the switch; Switch contact wear.
How do I fix a B3527 diagnostic trouble code?
To fix B3527: Read error codes and determine the type of fault. Check the power window lock switch for sticking.. Measure the voltage on the signal wire of the switch. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3527?
Do not drive — repair immediately
How much does it cost to fix B3527?
The estimated repair cost for B3527 is $11–78. Actual cost depends on your vehicle, location, and labor rates.
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