DIY: SC400 (A340E) Shift Solenoid Replacement - Page 2 - Club Lexus Forums


DIY: SC400 (A340E) Shift Solenoid Replacement

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Old 10-03-11, 02:17 AM   #16
piratebron
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WOW Thanks E365 Those directions are perfect.. The best tutorial I have seen. You are so thorough I dont have a single follow-up question.
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Old 05-30-12, 09:32 PM   #17
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Just so theirs no confusion, the Canadian model sc 400s come with the A341E not the A340E
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Old 07-13-12, 03:56 PM   #18
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Im about to do this in over the weekend. Does anyone know how to tell the two apart? Or does it even matter. I got new oem ones just tyring to figure out where what goes. They look identical!
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Old 07-23-12, 07:18 AM   #19
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As for telling which, i think youll have to drop the pan (see the first post):
http://www.toymods.org.au/forums/tec...nces-help.html

Few my post about which kit to get. theres a few different kits you can get that i didnt mention aswell.. just look on the rostra website and search for either a340 or a341 and then find the kit that you want.
http://www.clublexus.com/forums/7374670-post17.html
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Old 07-24-12, 05:17 PM   #20
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Thanks bryan767! That helped out but I'm still confused. I replaced my two shifting solenoid's (Toyota oem) so I am no longer having hard shifting problems but my od light still flashes sometimes. What is going on? And also what does the lock solenoid do?

Quote:
Transmission OBDI Diagnostic Codes

42 - No. 1 speed sensor signal malfunction

46 - Open or short circuit in no. 4 solenoid valve

61 - No. 2 speed sensor signal malfunction

62 - Open or short circuit in no. 1 solenoid valve

63 - Open or short circuit in no. 2 solenoid valve

64 - Open or short circuit in no. 3 solenoid valve

67 - OD direct clutch speed sensor signal malfunction

68 - Short circuit in kick-down switch
*nvm I found the quote above from another thread. Thanks CL! The all knowing forum!!

Last edited by RINTHAL; 07-24-12 at 05:24 PM.
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Old 08-18-12, 05:32 PM   #21
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trying to order solenoid I keep getting told that it is a 341E but door plate says 340E, its a 92 sc400 build is 12/91 any ideas how to verify
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Old 10-13-12, 10:40 PM   #22
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The Toyota part number is 85420-50020 (Solenoid,Assy).
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Old 10-24-12, 02:18 PM   #23
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What a great DIY!!!!!....I am about to do this for a friend and he purchased the Solenoid from Lexus and it only comes as one unit. He has a code 63 indicating to change Solenoid number 2.....if anyone can tell me from the picture in this thread which one is the #2 Solenoid I will greatly appreciate it.
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Old 02-26-13, 12:29 PM   #24
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Does anyone know if this guide will work with a 1995 SC300? I assume it is pretty much the same thing even if the trans are slightly different. Needed some guidance before I head to pick n' pull though.
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Old 12-19-13, 03:57 AM   #25
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hi guys,i have the same predicament.my od light throws code 63 and 67.for solenoid no 2,is it just 1 solenoid or two like in this DIY tutorial?which is which?

also,what needs to be replaced for code 67 (OD direct clutch speed sensor signal malfunction)?is it a solenoid also?

thanking you in advance.
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Old 03-06-14, 02:00 PM   #26
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Anyone?pls help.i have the same predicament.my od light throws code 63 and 67.for solenoid no 2,is it just 1 solenoid or two like in this DIY tutorial?which is which?

also,what needs to be replaced for code 67 (OD direct clutch speed sensor signal malfunction)?is it a solenoid as well?
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Old 03-11-14, 12:11 PM   #27
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can anyone shed some light?
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Old 04-29-14, 12:18 AM   #28
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Had a quick question before I purchase solenoid from Lexus.

My 1995 Lexus SC300 is throwing a code 62, bad solenoid number 1.

The first issue at hand is whether or not I need to replace 1 solenoid or 2 of them. It seems that the A340 for our cars has two different set ups which I will show post diagrams of.

So how do I tell which transmission I have and which solenoid to replace?
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Old 04-29-14, 12:21 AM   #29
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Not sure if this pic posted in previous reply.
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Old 04-29-14, 05:49 PM   #30
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Bumping this...

Could really use someone with a lot of sc300 AT experience.

First of all, when you get a code 62, which indicates a bad "number 1 shift solenoid," I was under the impression that is only ONE solenoid. Is this the case?

According to one of those diagrams I listed above there are TWO number one shift solenoids..

And then I called a local dealer (Newport Beach Lexus) and gave them my vin so I could get a straighter answer, he sent me the diagram that came up with my car/vin (mfg 1994, model year 1995) on his computers and I attached it to this comment. This diagram shows two number 1 solenoids and one number 2 solenoids. If this is the case and the diagram is true, does that mean a code 62 requires both number one solenoids to be replaced?

My symptoms:
Code 62 - OD off light flashing while driving.
When my transmission is in -
Drive - 3rd gear and OD (4th)only.
2 - 3rd gear only.
L - 1st gear only.

However, according to this website(http://www.autoshop101.com/forms/h16.pdf), on page 15, the figure illustrates that when only number 1 solenoid is malfunctioning the transmission should still be able to get to 2nd gear while in L

It even says when both are WORKING, in L drive, you have 1st and 2nd gear... Is this true??

That link then states when both number 1 and number 2 solenoids are malfunctioning you will only have 1st gear in L and only 3rd gear in "2" and only 3rd and OD(4th) in "D"

So what could be the case for my trans ??

This seemed like an easy code to tackle, but the more I research it, the more vague the data becomes.
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