My '97 GLE has a flashing O/D light and I'd like to read the diagnostic code off the TCM. The stickies only have info regarding how to read '98-'99 TCMs. I tried that procedure anyway, but of course it didn't work for my '97. I'm kind of worried about this damn dirty O/D light and would like some help ASAP! Thanks for the help

 

Bumped....

 

?? - post #29 in 1st sticky (4th gen F.A.Q.S.) states procedure for 95 - 97.

 

That write-up must of been done by a dyslexic moron. The steps are all wrong and it makes no sense. Doubt me? Read through them or try it yourself. Actually, I'll make it easy for you to see:

AT diagnostic
__________________________________________________ ________________

95-97
1. Start engine and warm to normal operating temp with O/D off. Makes sense.
2. Turn ignition swith to off postiton wait 5 sec. Makes sense.
3. Turn ignition switch to the ACC position. Makes sense.
4. Put O/D to ON. Makes sense.
5. Move shifter to P, Does NOT make sense!! As opposed to moving it to reverse? turn ignition on but don't start engine.
6. The OD light should come on for about 2 secs. Does NOT make sense!! How could it come on for 2 secs if the O/D button is on?
a. if light does not come on somthing is wrong with the trans. computer.
b. if light comes on proceed to no 7.
7. Turn ignigton key to off.
8. Turn ignition key to on, don't start engnie.
9. Move shift lever to D, trun ignition to off.
10. Put O/D switch to off position.
11. Turn ignition off.
12. Put O/D to off WTF? Didn't step 10 just say that?, turn ignition ON wait 2sec and move shifter to the 2 position.
13. Put O/D to on, move shifter to 1 position.
14. Put O/D to off, depress accelerator all the way to floor and release.
15. The computer is now in output mode and will start displaying the codes.

As you can see, this write-up is full 'o flaws and makes no sense whatsoever. Does anyone have an intelligible, rather than this garbage?

 

that's a way to get people on your side, bash someone who took the time to write a way to fix your problem. wheter clear or not at least it's something. i think anyone with a GED can follow through and see that if it doesnt work in the on position, the try the off position. and follow though with whichever is the opposite.

you also missed this part that says:

a. if light does not come on somthing is wrong with the trans. computer.

anyway, if it bugs you that much take it to a professional to have it looked at

 

First off, I'm not usually one to flame on anyone, but honestly, I'm not trying to get anyone on my "side". The proof that the write-up sucks is plain to see, however, what really bothers me is that people would post that as a sticky without actually proof-reading it. What ever happened to quality control?

you also missed this part that says:

a. if light does not come on somthing is wrong with the trans. computer.

I don't know if you have an automatic or not, but when you hit that O/D switch, the light comes on and stays on. You'd probably actually have to try following that write-up to see just how ridiculous it is.

 

if the light doesnt come on during diagnostics then there is something wrong. not under normal circumstances. just like how all the lights turn on when you first key the car over. just because theyre on doesnt mean that there is something wrong, but if theyre supposed to tun on during a diagnosis and they dont there's something wrong.


you ask for quality control, here's your chance to contribute. if it doesn't work, then let a moderator know so that they can delete/modify it. the best thing you can do is correct it and submit it to them, buy a FSM, and transfer the info over so that you fellow .org members can use it. i've never done the trans diag because i never had to, but i have done the CEL diag and it worked.

 

The O/D comes on for 2 seconds or so when you turn the ignition on, then goes away - as it should. I've done the CEL diagnostic countless times, it's not as trivial as the transmission diagnostic. I'll try to get a better write-up of this..