9-5 Sport Wagon (9600) V6-3.0L Turbo (B308) (2003)
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When the switch (252R) for the heated rear seat is pressed, B+ is supplied to pin 9 in TWICE. TWICE grounds the relay for the heated rear seat via pin
52.
The relay trips and supplies B+ via fuse 10 to the heating pad in the rear seat and to the switch indicator.
The length of time the heating is active depends on the exterior temperature. TWICE receives information on the exterior temperature from SID via the
bus.
When the outside temperature exceeds -5 degrees C, the heating will be on for 5 minutes. If the outside temperature is lower than -5 degrees C, it will
stay on longer. At -14 degrees C it will have reached its maximum activation time. This is programmable from 3-18 minutes but is normally preset to 10
minutes.
