Window Lockout Switch Circuit Low
Table of contents
B3527 CADILLAC Possible Causes
- Faulty Driver Door Switch Assembly (DDSA)
- Driver Door Switch Assembly (DDSA) harness is open or shorted
- Driver Door Switch Assembly (DDSA) circuit poor electrical connection
How do I fix code B3527 CADILLAC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B3527 CADILLAC code
The cost of diagnosing the B3527 CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B3527 CADILLAC Description
This window lockout switch or circuits that generate this Diagnostic Trouble Code (DTC) are built-in parts of the Driver Door Switch Assembly (DDSA). There are no external circuits. The DDSA internally supplies power and ground to the contacts of the window lockout switch. When the window lockout switch is operated, the switch contacts momentarily close to ground, providing the DDSA with a signal. The DDSA processes the signal, assigns to digital message to it, then sends the message to the passenger door modules via the class 2 serial data circuit. Upon receiving a class 2 message to lockout the passenger door windows, the passenger door modules will not allow their associated window to operate from the associated passenger door window switch.
If the window lockout is OFF deactivated, it will transition to ON activated when the switch button is momentarily pressed once. If the window lockout is already ON, it will transition to OFF when the switch button is momentarily pressed once. When the lockout is active, the switch button LED will be illuminated and the passenger door windows will not be operational from the passenger door window switches. However, the passenger door windows can still be operated from the appropriate power window switch built into the DDSA.