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No outside air temp on display
OK - so after sitting for the best part of 3 months, decided to take my baby out for a drive.
When turning on the aircon & adjusting air temp up from min - after a few seconds it decides all by itself to return to min temp? (cannot hold the temp set by me - even has occasional, random - beeping coming from dashboard with no display showing). Also the outside temp switch will not switch the display (inside/outside). Any suggestions. Last edited by SURTEESS; 02-06-2012 at 12:18 PM. |
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Re: No outside air temp on display
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#3
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Re: No outside air temp on display
See this link for discussion on the JDM style A/C controls and how one member fixed his: http://www.svxworldforums.com/view_t...14&forum_id=15
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'94 Laguna Blue LSi ~159k.......JDM ultra short-geared 3.900 STi Version 7 6-speed w/ Cobb shortshifter, ECUtune 244,8.1mm/256,9.1mm i/e cams, group N motor mounts, '97 grille, JDM clear corners, Momo JDM Legacy GT steering wheel, apkarian's LED tails, silver STi BBS wheels, PWR radiator, redstuff pads f/r, drilled/slotted rotors, bontragerworks rsb #18, Koni/GC 450f/375r coilovers, Megan Racing adjustable lateral links, KMac c/c plates, Stebro exhaust, ECUtune 1v5, Optima battery in the trunk where it belongs. Turbo project '97 Ebony LSi ~137k #036.......Power mode mod, JDM clear corners, BBS wheels. AUX/pocket mod Now a mod "over there" ............Photo album |
#4
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Re: No outside air temp on display
think the issue must be an oxidised switch - after about 10 minutes it tends to sort itself out - now 4 days in a row without any issues (touch wood!!!)
Last edited by SURTEESS; 02-08-2012 at 10:14 AM. |
#5
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Re: No outside air temp on display
Seems to have sorted it'self out - but heading over to see NUTSHL in a few weeks time, he has an SVX in pieces & I am keen to check the condition & see what parts I might need
Thanks PADDLESNZ for the Japanese web link below on how to fix the pcb in the aircon unit - will post some pictures from both units once I get time. http://genmei.itline.jp/~svx/diary/?date=20040912 Looks like the properble cause is power supply ripple getting through the C2 (inductor) / C9 (Capacitor) line - will trace both back to source & measure both voltage & ripple from each unit supply. It maybe that replacing both + replacing supply capacitor - upstream (with a bigger/newer one) elsewhere on the pcb may aid with the issue. C2/C9 also goes to resistor network (pull-ups) from the VCC of Motorola IC MC1401x (could be a buffer driver chip) - will know full number when I get more into it. Last edited by SURTEESS; 02-08-2012 at 10:16 AM. |
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