not able to enter diagnostic mode

[D-a-n-i-e-l]

I can not enter diagnostic mode through the touch screan. The TCC is working but for some reason I can not access the diagnostic mode. Any one ever had this issue?

[Barney Eaton]

You show a touch screen so we are talking 1988 or 1989.

With the ignition ON

simultaneously touch the OFF and WARM buttons on the climate screen........hold until you get a BEEP

The screen should then go to the first Service mode screen.

[Guest EDBS0]

Mine would "get confused" from time to time.

I just would keep trying every time I started it. It would resume working within a week and work fine for 8 or 9 months and then repeat the process.

[D-a-n-i-e-l]

I know how to access the diagnostic mode but it will not enter the mode

[Guest PTC Bob]

Do the climate control buttons work for CC? Maybe the contacts are dirty!

[Guest wally888]

MY 91 had this problem since purchase in 2000!

Seems was associated w/ a glitch (trip odometer would sometimes work { when working I could access diagnostics} but when not working would not start from Zero=would just stay at 00 and when car shut down/restarted would show miles driven before setting it to 00.

Sometimes the trip odometer would stay at 00 while driving for just a couple of miles, then start working. At other times it took 20 or more miles for it to start ( Always started at .01 miles)and sometimes did not work for days/many miles.

[D-a-n-i-e-l]

OK I took out the CRT and cleaned all conections and everything else that I could clean. Put the CRT back in and it works great. I wish I would hae found something that was a bit more of a telltail sign, but at least it works. Thanks for the imput.