Carrera32TargaSp Posted August 5, 2019 Share Posted August 5, 2019 I notice the rear demister only heats/ clears the centre part of the Targa rear window (Carrera 3.2 1984). I have the one stage switch (single click out) that also twists, and heated mirrors. To be honest, I'm not sure if any more of the rear screen ever cleared since I've had the car. Questions: 1. Should this car have the two stage pull switch, or is that only the older cars? 2. Is this as simple as the second relay failing in the solid state box? 3.(a) I think this only activates the three (?) window sections when voltage is over a set point, and 3 (b) may (?) also have a timer for one section? 4. The "twist" in in or out position is just to activate the heated mirrors right? Thanks! Link to comment Share on other sites More sharing options...
Type911 Posted August 5, 2019 Share Posted August 5, 2019 Targa screen should be 2 stage, something like 150 watts then 300 watts, hence the 2 position switch Link to comment Share on other sites More sharing options...
Carrera32TargaSp Posted August 5, 2019 Author Share Posted August 5, 2019 1 hour ago, Type911 said: Targa screen should be 2 stage, something like 150 watts then 300 watts, hence the 2 position switch Ahh... So I have the wrong switch installed? I wonder if I install a two stage in place of one stage, is the wiring the same or has this been meddled with in the past... Link to comment Share on other sites More sharing options...
SilverWT Posted August 5, 2019 Share Posted August 5, 2019 You have the correct action switch. The twist action activates the second stage, the heated mirrors are on with either stage. That is how my '84 coupe works and what it says in the driver's handbook, which covers all variants. Mark Link to comment Share on other sites More sharing options...
Phill Posted August 5, 2019 Share Posted August 5, 2019 (edited) On my 78 it is a 2 stage pull switch, 1st for inner, 2nd for both. Edited August 5, 2019 by Phill Link to comment Share on other sites More sharing options...
SilverWT Posted August 5, 2019 Share Posted August 5, 2019 My late SC ('83) also has the updated pull/twist switch. Mark Link to comment Share on other sites More sharing options...
Carrera32TargaSp Posted August 5, 2019 Author Share Posted August 5, 2019 4 hours ago, SilverWT said: You have the correct action switch. The twist action activates the second stage, the heated mirrors are on with either stage. That is how my '84 coupe works and what it says in the driver's handbook, which covers all variants. Mark Thanks! That probably means the relay or (gulp) wiring are bad. I might just replace the relay and see what happens. Link to comment Share on other sites More sharing options...
Carrera32TargaSp Posted August 10, 2019 Author Share Posted August 10, 2019 I've ordered the relay from local OPC. Fingers crossed this is the issue (one of the relays has gone bad inside), and not in the wiring... will update when I install. Link to comment Share on other sites More sharing options...
Carrera32TargaSp Posted October 6, 2019 Author Share Posted October 6, 2019 So it turns out the old relay (well one of two in the housing) had disintegrated, so new part sorted it out. Link to comment Share on other sites More sharing options...
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