Question about 1990 Honda Accord

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What happens when the tcu goes out? on a 1990 honda accord

I have a 1990 haonda accord and the "s" light and check engine light both came on, the speedometer qiut working is this due to the tcu or the speed sensor?

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  • scoop180 May 28, 2009

    GOOD JOB, CHANGED THE SPEED SENSOR TONIGHT AND THE LIGHTS WENT OFF AND IT SHIFTS BETTER. MY WIFE CALLED THE HONDA DEAER IN ROCKSPRINGS WYOMING TODAY AND ASKED WHERE THE SPEED SENSOR WAS LOCATED AND THEY TOLD HER THAT THE AR HAD 2 ONE BY EACH WHEEL AND THAT MY CAR DOES NOT HAVE A TCU. WHAT A JOKE, HIS NAME IS DUSTIN MOSES, HIS FAMILY OWNS THE PLACE AND HE WAS TRYING TO RIP WY WIFE OFF, THANKS AGAIN...

  • Anonymous Mar 13, 2014

    1990 Honda accord speedometer works after tapping guage?

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Prob speed sensor can scan for free oriely auto let me know vote for me ok

Posted on May 26, 2009

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I have a honda accord 1992 ex coupe 2 door. Sometimes when engine is hot the check engine light flash solid and d4 is blinking that cause me not to start the car i have to wait unitl check engine ligth...


Check around the ecu and a tcu for moisture. Others have reported similar issues and find the carpet very damp. Some have pulled the control modules to dry out and let carpet dry and the issue was resolved. Of course, if theRe is moisture then you need to fix that leak, and the damage could be too bad to fix by letting it dry.

Apr 07, 2017 | 1992 Honda Accord Coupe

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If the check engine lioght on an honda accord 1990 model do not go off after two seconds and while this is happening the computer shows no signal. What can be the possible cause of such problem because...


It is uaually a bad ECM (car computer). However it could be computer wiring shorting out as well. This is very difficult to find and fix because the wires could be shorting out anyewhere in the circuit.

Sep 16, 2011 | 1990 Honda Accord

1 Answer

I have a 1992 honda accord dx, i can be in park and the D4 light is on, and the transmission will not shift properly when i put the car in gear, if the light goes out the car runs great, what do you think...


HI. This is a TCU fault. This is intermittently occurring at this time, but it will eventually get worse. You will need to have the TCU scanned for possible transmission trouble codes. I suspect that the TCU will need to be replaced or there may be an issue concerning the solenoid pack. You will need those codes to know for sure.

TCU - Transmission Control Unit

Aug 26, 2010 | 1996 Honda Accord

2 Answers

My honda 1993 wouldnot go forward , only goes reverse gear does not shift.


A common problem with 93 Honda was the TCU unit (the brain) which is located under the passenger floor board. You can go to a salvage yard and get a used one relatively cheap, a new one is very expensive. And, this is a do-it-yourself project. If I can do it, you can.

If it just started to do what you say and you have not had any grinding sounds etc. I would try this first. Personally, I now keep a spare TCU on hand, just in case for my 93 Honda.

May 09, 2010 | 1993 Honda Accord

1 Answer

S light comes on..


Its the speed sensor. replace asap.

May 26, 2009 | 1990 Honda Accord

2 Answers

1990 honda accord seatbelt red light flashing all seat belts are fasten, why does green s light stay lit


check under seat and see if wire connector has come loose what green light are you talking about if you mean the green "s" light you just hit the switch on the shifter for firmer and higher shifts if its an automatic transmission.

Feb 22, 2009 | 1990 Honda Accord

1 Answer

Where is the tcu in a 2002 honda accord


it is the Transmission Control Unit. you have to find the reason why the TCU is flashing the D4 fault code. not replace the unit. have your vehicle scanned for another code. your transmission or transaxle is giving you a warning that something is wrong .

Nov 20, 2008 | 1992 Honda Accord

1 Answer

1990 Honda Accord Transmission Shift Problem


Your TCU (Tranmission Control Unit) is bad, It is located behind the passenger side kick panel. There is a diode that burns out. it can be bought on ebay for about 79.00 with exchange.

Lugnut61

Sep 13, 2008 | 1995 Honda Accord

4 Answers

TCU


the tcu is on the right ( passenger) side footwell, under the carpet..the carpet has velcro tabs on it that will allow it to be pulled back...once the carpet is back there is a metal cover over the computers that is held on with 4 10mm bolts..take them out and you can remove the tcu!

Aug 09, 2008 | 1992 Honda Accord

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