Hello guys, I'm trying to figure out why my HRW is only a RW. Does anybody know the location of its relay? My guess is the one on the right side of the lighting relay, but I'm not sure. My car is a 1979 model BTW. Nice day to all. Christophe.
I've had a look at the comprehensive SAAB V4 WSM and it quotes the following, which I hope assists:
The [HRW] control relay is mounted at the dash panel near the light & windscreen wiper relays.
Looking at the wiring diagram, it appears there should be a grey and black wire to the relay, with a white wire going from the relay to the switch and a red from the relay to the HRW.........that covers all 4x relay terminals.
Topic 
Heated rear window relay location
Posted - 27 Jan 2026 : 16:18:49 
