DS_Porter 89 Burgandy Posted July 12, 2017 Share Posted July 12, 2017 Since diagnostics is entered by pressing the "off" and "warmer buttons on the '89 touchscreen, is there a way to turn on the A/C once diagnostics are entered? This is probably a "duh" cause I am too lazy to read the manual..... 1 Link to comment Share on other sites More sharing options...
Ronnie Posted July 12, 2017 Share Posted July 12, 2017 Yes. Press the the upper left hard button to select the climate control screen. Then turn on the A/C and adjust it to the temp setting you want. Then press the lower right hard button to return to the diagnostics screen. 1 Link to comment Share on other sites More sharing options...
89RedDarkGrey Posted July 12, 2017 Share Posted July 12, 2017 While in Diagnostics- push CLIMATE and control whatever you want. Push STATUS to return to diagnostics. http://reattaowner.com/roj/onboard-diagnostics/computer-diagnostic-instructions-19881989#pg-3 Download the Booklet, size it what you want, print it out, staple together, keep in car. Link to comment Share on other sites More sharing options...
DS_Porter 89 Burgandy Posted July 12, 2017 Author Share Posted July 12, 2017 Gee Wally this place is really keen! 1 Link to comment Share on other sites More sharing options...
89RedDarkGrey Posted July 12, 2017 Share Posted July 12, 2017 If you push WARM a couple of milliseconds before OFF your HVAC won't turn off. Link to comment Share on other sites More sharing options...
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