VS Caprice Demister Circuit Help

Holden/Delco Tuning. ALDL, OBD 1.5. Circa 1989 to 2004.
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Flyingwide
Posts: 6
Joined: Tue Feb 22, 2022 10:04 am

VS Caprice Demister Circuit Help

Post by Flyingwide »

Hi All,

I have another strange one. My VS Caprice L67 Auto has a relay clicking on and off constantly when the engine is running, whether it’s idling, driving or just started, it keeps clicking, and in turn the rear demister switch keeps clicking on and off. I’ve changed the LP check relay, and no difference, I’ve also disconnected the demister switch, and still the relay clicks on and off constantly and not particular pattern to it either. The relay clicking also makes a slight difference to idle, it increases load on the engine similar to an AC compressor cutting in and out. I don’t have a wiring diagram, so not sure what circuits share the rear demister circuit, but any help would be much appreciated.
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Vaxx
Posts: 17
Joined: Thu Mar 24, 2022 6:29 pm
cars: 1985 L60 Diahatsu Handivan running Ecotech and 5 speed
2002 Custom Hilux running 302w and manualised BTR with vn ecu
Location: Gold Coast, Queensland

Re: VS Caprice Demister Circuit Help

Post by Vaxx »

here the circuit
Attachments
demist.jpg
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