Question about 1992 Honda Accord

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Where is the tcu in a 2002 honda accord

I have 2002 accord sometimes when i come to a stop shift hard to first gear and d4 for is flashing tcu and check engine light comes on and starts shifting hard when i turn of the car and start it it drives fine thinking its the tcu need to be changed

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  • Anonymous Mar 17, 2014

    1999 gr am. 75,000 miles. rev high shift hard, don't want to start, no lights coming on to indicate problem, not even check engine light

  • Anonymous Mar 28, 2014

    Transmission shifts fine but the engine is really loud inside the cabin of the car

  • Anonymous Mar 29, 2014

    sometimes shifts hard and you can not go over 40mph. check engine light comes on and it reads low voltage. Ive had four mechanics look at it with no success.

  • Anonymous Mar 29, 2014

    my 2002 honda has a hard shift in first gear and first gear onlyit rides like a new car after it shifts out

  • Anonymous Mar 31, 2014

    why Honda accord 2002 D4 LIGHT FLASHING

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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 .

Posted on Nov 21, 2008

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2 Answers

D4 lite flashes


Flashing D4 light is an error from the TCU (transmission control unit), so you got something going on with your transmission. If you want to pull the error code, remove the passengers side kick panel and look for a pair of wires with a blue connector at the end. Stick a paper clip or some other piece of wire into each hole of the connector to short the wires. Put your key in the ignition and turn 2 clicks. The D4 light will flash the code...short flashes=1 and long flashes=10. Add the number of short and long flashes to get your code. Errors are below:

0-Transmission control unit (TCU) faulty.
1-Lock-up solenoid 'A' circuit open or shorted.
2-Lock-up solenoid 'B' circuit open or shorted.
3-Throttle Position Sensor circuit open or shorted.
4-Vehicle Speed Sensor open or shorted - No signal from speedometer.
5-Shift Lever Position Switch circuit shorted.
6-Shift Lever Position Switch circuit open.
7-Shift Solenoid 'A' circuit open or shorted.
8-Shift Solenoid 'B' circuit open or shorted.
9-Counter shaft or transmission speed pulse generator open or shorted.
10-Coolant Temperature Sensor open or shorted.
11-Engine RPM (Ignition coil signal) open or shorted.
12-(No code 12 used)
13-Main shaft speed pulse generator open or shorted.
14-Linear (line pressure control) solenoid open or shorted.
15-Kick down switch circuit shorted.

Hope helps.

Aug 03, 2011 | 1992 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

1 Answer

92 honda accord D4 light flashing


Flashing D4 light is an error from the TCU (transmission control unit), so you got something going on with your transmission. If you want to pull the error code, remove the passengers side kick panel and look for a pair of wires with a blue connector at the end. Stick a paper clip or some other piece of wire into each hole of the connector to short the wires. Put your key in the ignition and turn 2 clicks. The D4 light will flash the code...short flashes=1 and long flashes=10. Add the number of short and long flashes to get your code. Errors are below:

0-Transmission control unit (TCU) faulty.
1-Lock-up solenoid 'A' circuit open or shorted.
2-Lock-up solenoid 'B' circuit open or shorted.
3-Throttle Position Sensor circuit open or shorted.
4-Vehicle Speed Sensor open or shorted - No signal from speedometer.
5-Shift Lever Position Switch circuit shorted.
6-Shift Lever Position Switch circuit open.
7-Shift Solenoid 'A' circuit open or shorted.
8-Shift Solenoid 'B' circuit open or shorted.
9-Counter shaft or transmission speed pulse generator open or shorted.
10-Coolant Temperature Sensor open or shorted.
11-Engine RPM (Ignition coil signal) open or shorted.
12-(No code 12 used)
13-Main shaft speed pulse generator open or shorted.
14-Linear (line pressure control) solenoid open or shorted.
15-Kick down switch circuit shorted.

Aug 11, 2010 | 1992 Honda Accord

1 Answer

Had a used trans. put in my 92 honda accord 2 months ago. it was shifting hard going into 2nd gear. pulled TCU from the car the trans. had came from and put it in, still same problem. this past week D4...


your transmission has external shift solonoids towards the front one is for 2 gears and the other for the other two i believe the lower one is the one you want ot replace they rust up and start binding inside.

Jan 24, 2010 | 1992 Honda Accord

1 Answer

Not shifting in 3 or 4 gear


What is is causing this is a faulty, damaged, or otherwise inoperative TCU or Transmission Control Unit. Very simple fix that most anyone can do with a proper diagram. If you are able to get hold of a graphic diagram you simply have to disconnect the battery, take out the two plugs that plug into the bottom of the computer, and replace the unit. If you are going to do this yourself I would advise spoending a very small amount and purchase a "Memory saver" so that you will not have to worry too much about the car having to "Relearn" itself. you can usually pick a decent TCU from a junk yard for anywhere between $50-$125.

Good luck and hope this helps.

Dec 29, 2009 | 1992 Honda Accord

3 Answers

'92 Accord TCU error 14?


If it feels like you only have 2 gears, and 1st is gone, then it sounds like the transmission computer needs to be replaced. Very easy self done job.

May 04, 2009 | 1992 Honda Accord

1 Answer

1992 honda accord.The gear shift will be in D 4 But the shifting lights for Park will come on and both lights will start blinking.


The d4 light will blink when there are codes in the tcu. You need to have the codes read on the transmission computer.

Feb 18, 2009 | 1992 Honda Accord

1 Answer

1992 honda accord stuck in 4th gear


TCU (Transmission Control Unit) Located behind the Passenger Kick panel. it will have a burnt diode inside and can be purchased on ebay for about 79.00 with exchange.

Lugnut61

Feb 08, 2009 | 1992 Honda Accord

1 Answer

Transmission stuck in forth gear check engine light is on.


Your TCU (transmission Control Unit) is bad. it is located behind the passenger side kick panel. you can purchase it on ebay for about 79.00 with exchange.

Lugnut61

Feb 08, 2009 | 1992 Honda Accord

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