Bernie Lomax

I've put almost 55K miles on this car and only the past couple months have I noticed that my OD light blinks when I turn my car on. I don't think it's always done this, but I am a bit crazy, so who knows. Someone back me up on this one.

njmaxseltd

iTrader: (19)

Ummm not sure if it actually blinks, but I do know it's on when I start the car for a few seconds.

Bernie Lomax

I can't figure it out. My OD is most always OFF when I start the car, but recently I've noticed it's blinking when I start it up. Not sure if it's telling me something or what...

Bernie Lomax

Auto Tranny Control Unit thread

meccanoble

iTrader: (22)

i did conversion and mine blinks too (not 10 times) more like 5 or 6 and then goes away....

jayanth

It stays on for 2 to 3 seconds as soon as i turn on the key and then disappears.Try changing your tranny fluid it might help!
Take care,
Jay

Bernie Lomax

Had it flushed and filled at about 80k.

WaarrEagle

iTrader: (1)

I have heard before on here that it is telling you that you have driven it too hard. I heard that a long time ago and nobody says that anymore so maybe its not true?

MIXXMAX

iTrader: (1)

Actually, if your Overdrive lamp flashes, it means that something is going "awry" with your transmission. Also, more than likely, it will trip the CEL, but will not illuminate the CEL lamp. It is a "ghost" code like the knock sensor. You can extract the transmission codes from the "tranny computer". This will tell you what is wrong with the transmission. The process seems kind of long and complicated, but if you follow step-by-step, you shouldn't have a problem. If you have access to a Hayne's manual, you can find the procedure on pages 7B-2 and 7B-3. Good luck!

Nismo3112

iTrader: (12)

LMAO @ sig pic
true, funny but true

pocketrocket

iTrader: (1)

I thought I saw that sig pic in ericdwong's months and months ago?

BTW mecca, did you get a new engine (EGI) harness when you did your tranny swap? Most likely, otherwise it wouldn't hook up. Did you remove your auto tranny computer? You don't need it anymore ...

Vyrus

iTrader: (4)

Mine stays on for about 2 seconds after the other lights go off. I think that's normal, somebody tell me if it's not.
-Cyrus

pocketrocket

iTrader: (1)

Yes sir!

meccanoble

iTrader: (22)

i changed computer but didnt' change harness, i thought there was only one computer which is inside dash where stereo is and all but when i converted my mid console to 97 from 95, i saw a little computer type thing underneath there...not sure what that is but looks like something important....

and hlh051 said u don't have to change harness to get rid of engine light only ECU but i have a few more problems i have to take care of....

pocketrocket

iTrader: (1)

mecca

You have your ECM (Engine control module) which is the one with diagnostic screw near the driver foot / accel pedal area.

There's also an ATCU (A/T control unit) close to it. Which one did you change out?

In my 95, you can see the ATCU if you pop off the (A/T) shift trim and look forward. The harness connector is right in front of you, has a red projection on the center of the connector. To the best f my knowledge, it's the ATCU that triggers the O/D off lamp, not the ECM.

Kevin

this happend to me on a snowy NJ morning. I had spun my tires excessivley on and icey local road and then slammed the brake hard( not a smart move by the way)

The tranny then locked itself into 2nd gear. When I stopped on the side I turned off the car and restarted it and it blinked the OD light a few times, same behavior the tranny was locked into 2nd gear.

At the next time I tried it, the OD light didnt blink and the car was back to normal. This apparrently was some kind of safety mechanism built into the tranny from what I was told.

Kevin