LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2017 >> Qashqai SL >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System >> System Description >> System >> Fail-Safe >> Fail-Safe Control
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fail-Safe Control

Power window main switch switches power window operation to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and direction of door glass. Power window main switch switches power window operation to fail-safe control when error beyond regulation value is detected between the fully closed position and the actual position of the glass.

Error Error condition
Pulse sensor malfunction When only one side of pulse signal is detected for more than the specified time during glass open/close operation
Both pulse sensors malfunction When both pulse signals are not detected for more than the specified time during glass open/close operation.
Pulse direction malfunction When the pulse signal detected during glass open/close operation continues in the condition that the drive direction of power window motor is operating in the opposite direction for the specified time or longer
Glass recognition position malfunction 1 When it detects the error between glass fully closed position in power window main switch memory and actual fully closed position during glass open/close operation is more than the specified value.
Glass recognition position malfunction 2 When it detects pulse count more than the value of glass full stroke during glass open/close operation.

It changes to condition before initialization and the following functions do not operate when power window main switch switched power window operation to fail-safe control.

Perform initial operation to recover when power window main switch switched power window operation to fail-safe mode. However, it power window main switch switched power window operation back to fail-safe control when malfunction is found in power window main switch or front power window motor (driver side).