94 accord auto tranny slipping - Honda-Tech


94 accord auto tranny slipping

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Old 08-18-2004, 06:51 AM   #1
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Default 94 accord auto tranny slipping

Friend of mine is having some problems so i thought i would post this for him

Maybe someone can point me to somewhere I can find some info. Stranger things have happened.

This has happened twice that I know of.

On the way back from the North shore (lake superior) today, I stopped for gas and as I left the auto tranny seemed to be slipping. Very little power getting to the wheels. I looked at the dash and the D4 light was blinking. I tried third with the same effect, then 2nd where it caught. The D4 light was still blinking. I pulled over and shut the motor off, then started it up and it was fine???? Wife said that this happened once before. Once I shut it down and restarted it it was fine


any ideas..
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Old 08-18-2004, 07:01 AM   #2
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Default Re: 94 accord auto tranny slipping (FifthGearOnline)

you can check the CEL for the tranny the same way you check for the motor.
D4 will flash you a code and tell you whats up. If anything I would check the fluid and see its still red and at the right level.
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Old 08-18-2004, 05:35 PM   #3
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will the dealer or someone be able to tell you what the code means?
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Old 08-18-2004, 06:17 PM   #4
 
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Default Re: 94 accord auto tranny slipping (FifthGearOnline)

my d4 light was flashing and turned out to be the solenoids--blondeaccord's did this as well and has not done it since to the best of my knowledge
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Old 08-18-2004, 07:33 PM   #5
 
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Default Re: 94 accord auto tranny slipping (FifthGearOnline)

As many of you are aware, early 90's Accords regularly have transmission shifting problems (eg. S light flashing or on steady, D4 light flashing, trans takes off in 2nd gear). The most common cause of this is a burnt out TCM.
I have been rebuilding these computers for quite some time now and have some in stock ready for shipping, or I can rebuild yours.
For pricing, or more information, please email me at: cmrvi1@yahoo.com

Below is some info on how to check for codes, TCM location, and most IMPORTANTLY, how to check your TCM.


Behind the right hand corner of the dash on the passenger's side (just below the glove compartment) you will find 2 connectors taped to the wire harness with blue tape ( unless someone previously removed the tape). One is a three wire connector (data link connector) the other is a two wire connector. By jumping the two wires on this connector, you check for engine and transmission codes.
With the ignition switch off, connect the two wires together. Have a pen and paper handy. Turn the ignition switch on. The S light (or D4 light if your car doesn't have the S light) should start to flash a code. Might be a combination of long and short flashes. A long flash stands for 10, and short flashes are 1. For example, if the light blinks: long-short-short-short, then that is a code 13. When you find out what code it is, post it and I can tell you what is going on. BTW, 90-93 Accords have a bad habit of burning out the trans computers. So sometimes you won't get a code. The light will just stay on steady when you jump the connector.
If the light doesn't blink when you jump the connector, then your TCM (transmission control module) might be bad.
To verify this, remove the TCM ( it's located under the rug on the passenger side bolted to the firewall). You will find two modules bolted to one bracket. The TCM is the smaller of the two, on the right.
To remove it, you'll need to remove the 4 bolts securing the bracket. Then, unplug both computer modules, and gently remove the bracket.
Next, unbolt the TCM from the bracket.
Remove the four screws that hold on the cover.
Look at the board carefully. If it is bad, you will find a burnt out resistor and a leaking capacitor. Again, LOOK CAREFULLY. Yours might not be this bad. Sometimes just one of the resistors will overheat and turn dark brown. If this is the case, I can rebuild it for you.
Email at cmrvi1@yahoo.com and I'll give you more details.


This is the TCM



With the connector pointing down, the bad spot will be in the lower right corner



This is what the damaged part looks like up close



Modified by cmrvi1 at 11:35 PM 8/25/2004


Modified by cmrvi1 at 11:37 PM 8/25/2004


Modified by cmrvi1 at 11:40 PM 8/25/2004
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Old 08-19-2004, 08:04 AM   #6
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damn......you kick *** man!!!!
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Old 08-25-2004, 04:11 PM   #7
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man you just cleared all my Q?s you are the man! BTW hpw much for the ecu's?
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Old 05-28-2005, 12:51 PM   #8
 
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Default Re: 94 accord auto tranny slipping (cmrvi1)

I've got a 90 accord, the beep code is 14, the tcu looks as if one of the caps has leaked.
while driving the trans go in and out of "sport" mode. happens at diffrent speeds.

what does it mean and what the fix?


Modified by 90cord90 at 6:03 PM 5/29/2005
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Old 08-26-2005, 02:07 PM   #9
 
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Default Re: 94 accord auto tranny slipping (90cord90)

my 1995 US accord wagon , i have checked the flashes on my d4 light and i get 4 short flashes and then it stops and then i get 9 short flashes ! my speedo fluctuates from 0 - 140kph aswell as the engine light on and d4 light flashing .

can anyone help ? telling me what this is ?

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Old 10-10-2005, 06:33 PM   #10
 
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Default Re: 94 accord auto tranny slipping (ogbusboy)

the code that came up was 7, can you tell me what that means
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Old 10-10-2005, 06:38 PM   #11
 
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the code that came up was 7 can you tell me what that means
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Old 12-10-2005, 11:19 AM   #12
 
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Default Re: 94 accord auto tranny slipping (cmrvi1)

My d4 light didnt do anything. it didnt come on or flash. i am in serious need of help here.
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Old 03-18-2006, 11:12 AM   #13
 
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Default Re: 94 accord auto tranny slipping (cmrvi1)

I have a 90 Honda Accord that is giving my problems. It will be fine when I start it up, but after 15 minutes it starts to lose power brakes, steering, and I can not accelerate past 20 to 30 miles per hour with the petal on the floor. The car will start bucking badly, and it starts to shift irregularly, I pulled the TCM, due to the flashing "S"light, and it doesn't look like what you posted, but it does have a spot where it looks like it has leaked a bit, I'm not sure if it is the cause of my problems, and I don't want to spend $250 if I don't need to, if you could tell me if this part looks damaged, and if it wouldn't if you know of something else that'd caue this I'd appreciate it if you could tell me.

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Old 08-11-2006, 07:00 AM   #14
 
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Default Re: 94 accord auto tranny slipping (Rhaknam)

Quote:
Originally Posted by Rhaknam
I have a 90 Honda Accord that is giving my problems.

Your problem is here:


I have the same problem. Can anyone tell me the OHM load of that resistor? I can't read the bands on that one or my own.


Modified by trouser chili at 7:07 AM 1/4/2007
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Old 08-13-2006, 10:49 PM   #15
 
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Default Re: 94 accord auto tranny slipping (eddiefedpops)

These are the trouble codes as they would appear on the check engine light flashing, I don't know about the D4 flashing as that is supposed to indicate a transmission problem, but I will put up what my Chilton's manual has, some of you guys should get one, a Chilton's.

Trouble code 4=Crank Angle or Crankshaft Position Sensor
Trouble code 7=Throttle Angle or Throttle Position Sensor
Trouble code 9= No.1 Cylinder position (sensor)
Trouble code 14= Electronic Air Control or Idle Air Control (IAC) Valve
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Old 09-14-2006, 12:44 PM   #16
 
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Default Re: 94 accord auto tranny slipping (cmrvi1)

My 94 accord makes me crazy.I checked the code-it's 13.When d4 flashing car doesn't start.Do you think that TCM is burnt out?
I got one more code-16,but maybe it's not connected with transmission.
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Old 03-02-2007, 06:54 AM   #17
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Default Re: 94 accord auto tranny slipping (redlion)

Old topic but MY 94 Accord just did it this morning.

D4 started blinking .

I gotta bring it to the mechanic.
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Old 06-07-2007, 11:57 AM   #18
 
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Default Re: 94 accord auto tranny slipping (90cord90)

I know this is an old topic, but I'm having the same trouble code. Code 14 where the S light blinks this code. (Transmission code I believe) Did you ever find out what the problem was 90cord90?

Also, I pulled out the TCM and none of the resistors are burnt. It still looks fairly new inside.
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Old 01-12-2008, 03:36 PM   #19
 
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Default Re: 94 accord auto tranny slipping (trouser chili)

Hi there,

Just wondering if you found the correct value for the resistor R41.
I have found the EXACT problem you describe and am anxoius to purchase the components and get back to using all four gears.
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Old 03-18-2008, 12:00 PM   #20
 
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Default Re: 94 accord auto tranny slipping (doorknob92024)

did you ever figure out the problem with your accord??? I have the exact problem I have to shift manually and it is pretty annoying please call 713 376 9128 or email me my name is Jeremy and thank you very much
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Old 03-22-2008, 11:56 AM   #21
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Default Re: 94 accord auto tranny slipping (jeremywilson88)

greetings , 92 accord D4 indicator light blinks with service check connector jumped
11 x's light off disconnected ignition coil connector
short or open in ignition coil wire
faulty ignition coil
14 x's light off short or open fas wire
trouble in pgm-fi unit
if the D4 INDICATOR LIGHT DISPLAYS CODES OTHER THAN THOSE LISTED OR IT STAYS LIT CONTINUOUSLY, THE CONTROL UNIT IS FAULTY
code blinks 1,2,3,4,5,6,7,8,9,10,11,14,15, per service manual , hope this helps ,or more food for thought rps


Modified by rps at 12:08 AM 3/24/2008
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Old 03-23-2008, 10:54 PM   #22
 
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Default Re: (FifthGearOnline)

i have a quick question in my 1990 honda accord ex, under the carpet on the passenger side ther is a what looks like a metal mounting cover over i think the transmission computer and when it is running there is a red blinking light. first what is the metal thing and what is the blinking light. i know that when the car is cold it will shift and drive find but as soon as it heats up it wont shift into drive and will only go into park and reverse and before i buy a new transmission i want to know if it could be the computer.
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Old 03-23-2008, 11:28 PM   #23
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Default Re: (Bloodsexandbooze88)

i would suggest you read above posts as to learn how to jump service connector . this will show you problem codes that will flash on your D4 indicator light. hence this will give you a little more help in your problem solving. to answer your other question on the metal box, the left side is your ECU ,the right side is your A/T CONTROL UNIT
RPS
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Old 07-25-2008, 03:11 PM   #24
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Default Re: 94 accord auto tranny slipping (jeremywilson88)

I know this is a few months ago, but the resistor is a 15 ohm, 1/4 watt , 5 % tolerance cabron film resistor at R41 and also at R42, they are .05 at the local electronics place here in town, dont pay $100.00 for a used one, fix it yourself. If you have a soldering iron and a brain, you can fix it yourself in 5 minutes flat and save yourself $99.95 on a used one.

Hope that helps everyone
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Old 07-31-2008, 09:27 AM   #25
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Default Re: 94 accord auto tranny slipping (FifthGearOnline)

I have had the F22B2 motor and tranny swaped for the H22A motor and tranny, and it is still automatic. I was driving down the highway and all of a sudden the tranny slipped out of gear and started to grind. I shut the car off and started it, and it ran fine for about 100 miles and then did the same thing again. my D4 light did not flash, and the tranny oil smelled burt. Help please
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