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Old 01-19-2020, 03:38 AM   #1
Scooby Newbie
Member#: 503560
Join Date: Jun 2019
Default 2007 wrx limited broken seat heaters

So i bought the car two years ago and have been so busy with the other issues the car has that Iíve just gotten around to the seat heaters now. Both lights come on when you flip the switches to turn them on, but neither seat gets warm. I checked both connections, but have not tested the resistance of heat packs/voltage getting there yet. I find it unlikely that both seat heaters just broke, I donít really know but Iíd guess itís something before either heat pack that broke. Anyone have an idea??
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Old 01-19-2020, 10:13 AM   #2
Scooby Newbie
Member#: 326958
Join Date: Jul 2012
Chapter/Region: NESIC
Location: Portland, Maine
2006 Impreza WRX
San Remo Red


According to the wiring diagrams fuse #4 behind the panel under the steering wheel is where those get power from in the factory configuration. Iíd agree it seems unlikely that both sets of hearing elements are toast. If you get lights on the switches the fuse is probably good. Iíd check the relay. The diagrams point to the ďrear 12V accessory relayĒ though I couldnít quickly find a location for that. Might be in the block of relays right next to that sane fuse block, where the fog might relay goes. If too donít hear a relay clock when you toggle one of the heat positions thatíd be my guess for sure
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Old 02-09-2020, 10:32 AM   #3
Scooby Newbie
Member#: 506392
Join Date: Sep 2019

Do you know how to use a multi meter?

If so, turn the meter onto resistance/ohms and check the the element wires on the seat harness.

If you get an ohm reading, heater element is OK and you have an electrical problem, if not your element is pooched.

Post back your results
krystalized_fozzie is offline   Reply With Quote

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