Trans trouble- I have a code...please help

Printable Version

Honda Accord >> General >> General Tech Help >> Trans trouble- I have a code...please help

Page: [1]

Login Message << Older Topic   Newer Topic >>

Trans trouble- I have a code...please help - 5/2/2008 10:30:21 PM    jbone   Posts: 6 Joined: 5/2/2008 Status: offline 1994 accord.  Started having shifting trouble about a week ago, and the D4 light began flashing. After some reading here, I figured out how to obtain the code. After jumping the conector, the D4 light blinks 7 times.  I cant tell if they are long or short blinks because there is nothing to compare to.  The light blinks 7 times, all the same length. Please help figure out what this code means. Thanks, Jason Post #: 1

RE: Trans trouble- I have a code...please help - 5/2/2008 11:32:00 PM    finch13 Posts: 4278 Joined: 6/7/2007 From: St. Paul, MN Status: offline I couldn't find any for the 5th gen transmissions, but here is a list for 4th gens: On the side of the transmission facing the radiator there are two solenoids valves that are held onto the casing with 2 bolts each. It should just be a simple unplug, unbolt and replace procedure, but wait until someone with more experience replies. _____________________________ USE ME TO SEARCH HAF PWOTY 2008! (in reply to jbone) Post #: 2

RE: Trans trouble- I have a code...please help - 5/3/2008 5:47:39 AM    TexasHonda   Posts: 1509 Joined: 2/18/2007 Status: offline Code 7 is shift solenoid A fault, wiring, connector, or solenoid. First make sure connector is clean of oil, and properly connected. Reset ECU and see if code 7 returns promptly. If yes, the problem is very likely a faulty solenoid A. Resistance of solenoid  should be 12-24 ohms from the connector contacts. If zero or infinite, the solenoid is bad. If solenoid checks OK, you need to remove Trans Control Unit connector and check wiring from TCU to shift solenoid A for faults to be sure.  Shift control solenoid A is lower of two solenoid control valve sets on forward side of trans. Suggest going to Online Manual section of DIY and download the 94-97 Accord manual from hondahookup.com. This will provide details of diagnostics and location/appearance of shift control solenoid. good luck _____________________________ See you down the ROW 1994 Accord EX (in reply to finch13) Post #: 3

RE: Trans trouble- I have a code...please help - 5/3/2008 10:04:37 AM    jbone   Posts: 6 Joined: 5/2/2008 Status: offline Thanks guys.  Now I have somewhere to start.  I'll let you know if I get it figured out. J (in reply to jbone) Post #: 4

RE: Trans trouble- I have a code...please help - 5/3/2008 11:13:24 AM    jbone   Posts: 6 Joined: 5/2/2008 Status: offline Resitance measures 26.8. It is outside you the specs you posted, but is it within reason, or a faulty silonoid? J (in reply to jbone) Post #: 5

RE: Trans trouble- I have a code...please help - 5/3/2008 12:05:30 PM    TexasHonda   Posts: 1509 Joined: 2/18/2007 Status: offline Since code 7 is presented, you have to suspect solenoid A winding. Solenoids usually fail by shorting, which leads to lower resistance not higher. Resistance may be OK. Note there are two solenoids. How did you measure resistance? It should be from A solenoid contact to ground, not between A & B solenoids. This would produce roughly twice the resistance, which is what you are getting. You need to use the download manual. Try to apply 12V directly to Solenoid A and see if solenoid will "click". If yes, I would say solenoid is OK, and start checking wiring and connector. good luck _____________________________ See you down the ROW 1994 Accord EX (in reply to jbone) Post #: 6

RE: Trans trouble- I have a code...please help - 5/5/2008 5:03:20 AM    jbone   Posts: 6 Joined: 5/2/2008 Status: offline Damn you are good. I checked the resistance exactly as you stated.  I will check the right way when I get home.  I'll also try applying the 12 volts as stated. On a side note. Once I was done checking the resistance (the wrong way) I pulled the fuse to reset the codes.  The car drove great for a about a mile, then began acting up again and the D4 began flashing again.  I hope this is an indication that the tranny is ok, and it is some external, like the solenoid. Thanks for your help. J (in reply to TexasHonda) Post #: 7

RE: Trans trouble- I have a code...please help - 5/6/2008 5:24:22 PM    jbone   Posts: 6 Joined: 5/2/2008 Status: offline okay damit... Now I'm stumped.  I checked the resistance as directed.  It was fine.  I supplied with 12 volts and I heard clicking from both solenoids.  I checked wiring, nothing noticible.  I removed and opened up the TCU to inspect.  Nothing obvious.  No burn marks or bad wiring that I could see.  I put everyhting back together and reset the fuse.  It drove great to and from work.  Then after about 30 miles of driving it began to act up again.  What could it be??? Any help please. Jason (in reply to jbone) Post #: 8

RE: Trans trouble- I have a code...please help - 5/7/2008 5:00:08 PM    TexasHonda   Posts: 1509 Joined: 2/18/2007 Status: offline You probably have an intermittent solenoid A. When cold, the resistance is OK and solenoid works fine. When fully warmed, an internal short in the winding causes the fault (short or open can be sensed by TCU). It will be difficult to confirm the above scenario w/ instrumentation. It might be possible to pull the part, warm in oven, pull and check unit resistance until short or open shows up. The shift control solenoid assembly is $150+ shipping from Rockauto.com or OEM part. You may want to check w/ salvage yards to see if you could scavenge a part from a damaged transmission. Not likely. They usually sell these parts w/ trans. Car-part.com can be useful to locate parts, but not this part, only whole transmissions, but you might use it to find likely salvage yards. good luck _____________________________ See you down the ROW 1994 Accord EX (in reply to jbone) Post #: 9

RE: Trans trouble- I have a code...please help - 5/7/2008 5:20:05 PM    ford   Posts: 265 Joined: 4/28/2008 Status: offline i would say it is really a faulty solenod A... i had the same problem just last week...and me and my mechanic checked both of the solenoid if they were opening ok...and both of them opend...but the solenoid (lower pair) didnt really opened as strong as the other one...so we change that one and tested it.... and that fixed it.... (in reply to TexasHonda) Post #: 10

RE: Trans trouble- I have a code...please help - 5/12/2008 1:26:02 PM    jbone   Posts: 6 Joined: 5/2/2008 Status: offline Thanks for all your help guys. Turns out it was a faulty solenoid A.  It was an intermittent problem as described.  I bought one at a wrecking yard for 50 bucks and she's fixed.  I hate intermittent problems.  The parts guy at the dealer, and the wrecking yard, said the part either works or doesn't.  Well they were wrong! Thanks again for all your help. J (in reply to ford) Post #: 11

RE: Trans trouble- I have a code...please help - 5/12/2008 4:54:50 PM    TexasHonda   Posts: 1509 Joined: 2/18/2007 Status: offline Thanks for posting the fix. Regards _____________________________ See you down the ROW 1994 Accord EX (in reply to jbone) Post #: 12

Today's Posts
Most Active Topics
Make A Donation
Forum Rules & FAQ
RSS Feeds

Honda Accord Prices

Top 10 Posters
wheelbrokera 7085 sir_nasty 6309 falkore24 5932 finch13 4278 00accordlx5s 3815 deserthonda 3575 live2rice 3444 jimblake 3272 19accord97 3171 smaglik 2623

New Vendors
Sportwing
AMSOIL - Performance Oil Technology