xc90 05 seat heaters

eegjr · Post by **eegjr** » 01 Oct 2010, 07:57

my seat heaters quit working so i purchased new modules at the recommendation of the dealer. Installed them and still no heat. Does something need reset or could I have another issue?

Post by **billofdurham** » 01 Oct 2010, 12:39

As far as I'm aware the seats are thermostatically controlled and will only switch on when the temperature is low enough to need them. This is certainly the case on the older Volvo models on on most other makes fitted with heated seats.

The wiring diagram for the XC90 does show a temperature sensor in each seat.

Bill.

Post by **stone36** » 05 Oct 2010, 21:17

does anyone know if these are "Pre-wired" for heated seats, as in since mine doesn't have heated seats, can I simply add the switches and have heated seats?

Post by **billofdurham** » 06 Oct 2010, 11:29

I wouldn't think so. The heated seats for any of the XC90s were in the climate package. This package consisted of:
Interior Air Quality Sensor (IAQS)
Rainsensor
Heated Front Seats
Headlamp Washers
cost $600+ and would have been specified at the time of ordering.

Bill.

Post by **stone36** » 06 Oct 2010, 12:39

I have the rain sensors, not sure about IAQS... I know I don't have the washers.