Window Anti-Trap Detection

WINDOW ANTI-TRAP DETECTION







The window anti-trap detection feature is only active in the one touch and convenience close modes of operation. It the window switch is pushed/pulled and held, the Anti-trap feature will not function.

The rubber pressure guard located at the top edge of each door frame consists of two contact strips that close when subjected to pressure. This provides anti-trap detection and signal generation to the GM.

When the contact strip closes, the window immediately (10 ms) reverses direction as with previous anti-trap systems. The contact strip does not require that the anti-trap feature be initialized prior to operation.

The pressure sensor finger guard has a resistance of 3.0 KOhm and it is monitored for open circuit. When pressed, the monitored resistance changes to <1 KOhm. Faults with the anti-trap system require that the window switch be held to close the window.

CONVENIENCE OPENING/CLOSING
The GM and Front Door Switch block Modules provide the convenience open/close feature providing control of the power windows (and sunroof) from outside the vehicle with the key in the driver's door lock. The FZV provides the same function for the opening only.
- The anti-trap feature is active during convenience closing from the driver's door lock.
- The convenience open feature provides outside activation of the windows and sunroof in the same manner.
- If the GM receives a request to operate convenience close or open for more than 110 seconds, the function is deactivated and a fault code is stored.
- The Car Memory Feature can activate and deactivate the Convenience Open Feature from the FZV's control.