ChineseGuyinthe415

So I brought my car into the dealer to fix my memory seat. They replaced with a new switch and new pcm and they still couldn't fix the problem. You guys know what the problem might be?

friesm2000

iTrader: (4)

ummm no, need to be more descriptive, and why would they do the pcm, thats for the engine not memory seats (do you mean the memory seat module underneth the driver's seat)

and the switch do you mean the memory position select switch on the door???

ChineseGuyinthe415

ok my bad, just got home last night and was tired.

The memory seats wouldn't work. The switch on the door handle has power so I know that was fine. The dealer replaced it with a new switch, a new multi-plex unit for the seats and nothing worked. I'm wondering if it's some messed up wiring or something.

friesm2000

iTrader: (4)

so does it work from the keyless entry remotes??? (remotes should have a 1 or 2 on the back for what position they are linked to)
also do the mirrors move at all???
is the car in park???
have you programed the seat positions??? (push memo, then the memory seat position you want within 5 seconds or so, also car has to be in park)
is the door shut??? i don't think mine works with the door open
do you know if that door (or driver side fender) has ever been hit in a accident???

trying to check as many inputs and outputs, things as possible...

camaroracer016

I have this same problem and it drives me nuts!!!

victorvu

iTrader: (1)

i know what the problem is, could you lean your chair back and forward? when my chair doesnt move back and forward the seat memory doesnt work.

camaroracer016

The seat moves when u Use the buttons. But no memory feature

celynka

Many people has same problem and from all the descriptions it seems like it is a faulty switch that triggers seat to move forward when you lean , back of the seat. Do not have schematics but this switch may be separate or integral part of back recliner motor

ChineseGuyinthe415

to answer the questions:

I don't think our keyless remote controls our memory seats? (not too sure but I have an aftermarket keyfob)

Mirrors DO move, also when you put in reverse the passenger side mirror tilts

Chair DOES lean back and forth

On the switch itself, when I push the buttons, nothing happens at all. Normally the switch has a red or green light I believe and that doesn't come on neither. Bought a new switch and still nothing

Never had an accident on the front fenders, and yes doors are shut.

As camaroracer said, seats move just no memory.

Again, dealer put in new switch and multiplex unit and still didn't solve the problem. They said they'll call acura tech and find out another solution. I'll keep you guys updated

friesm2000

iTrader: (4)

keyfobs are linked to the memory seat position, aftermarket ones don't help

mirrors i was thinking if they move with the memory fuction (suppose to)



lights are suppose to be green

when you push the buttons are you trying the memo button too???
cause
when you push the memo button (red button) do yor hear a beep (confirmation tone/beep)
then when you push one of the memory seat positions whithin 5 seconds or so does it beep twice for that
(suppose to save the seat position)
do that for both memory slots, but with different seat positions





also the memory fuction onlys works with the car in park for the autos (idk about manual though)

ChineseGuyinthe415

ok so when I say the switch doesn't work.....no light, no beep, just silence..

Haven't tried the oem keyfob but that wouldn't matter anyways since they changed the multiplex system as well as a brand new switch already

camaroracer016

My switch does the same thing. But if you put it in test mode it lights up.

friesm2000

iTrader: (4)

almost sounds like the memory seat module is not seeing that the car is in park (only time it should work), and i am pretty sure that it is a seperate switch then the one for your dash shift lights and such, in that it has it's own dedicated switch
( for so many questions and repetitives ones too)

silvervtec96

My memory seats have been hit or miss lately too. Some times it will adjust to 1 or 2 and sometimes not. Even pressing the buttons on the door are hit or miss. Have tried being in neutral, in gear, with/without e-brake pulled. Seemed like back in the day, I could even press the button on the door while driving and it would go to either setting... I'm guessing the brains of the memory seats is starting to go... Can't complain though, first annoyance in a 134k miles!

ChineseGuyinthe415

Update:

Dealer called and the service manager is really helpful. They THINK it could be the aftermarket alarm that is causing the memory seats not to work but I called bs because it shouldn't even be tied to the seats at all.

They wanted $220 to pull the aftermarket alarm out and see if that was the problem. If not, then they put it back and not charge me. The service advisor is fighting for me not to pay that which is cool of her.

They see in their records that I've brought in the car for the same problem back in june and they couldn't figure out the problem. PLUS i've had the alarm for over 2 years now and I HIGHLY doubt that the alarm would affect the seats.

Now they're just running all sorts of tests to figure out the problem. My guess is an open in the wire somewhere so it's not getting a good power or ground since all the switches supposably ok. I think once the tech said its the alarm, everyone else jumped on the band wagon and said the same thing.

I believe it should be something a lot simpler than yanking the whole alarm out. I was considering on taking the car to another acura dealership to get a second opinion BUT they insist that they're top notch and will not leave a car unfixed.

Either way, I have a loaner car, it's covered under warranty and the less miles I put on my car the better. So far over 1K miles in 2 weeks on the loaner vehicle lol

camaroracer016

It's not the alarm. No way. I don't even have a alarm and I have the same problem.

Rajca

iTrader: (8)

im in the same boat as u op.

when i got the car the memory seat function and memory mirrors didnt work. i hate it bc when i race im in a completely diff seating position.

its all plugged it but doesnt work. its like it has no power going to it. seat and mirrors work fine.

camaroracer016

Did you try to put the system Into diag mode?

Rajca

iTrader: (8)

how do u do that?

camaroracer016

Iirc you turn to ignition on and press and hold all 3 buttons at the same time for about 10-15 sec. The buttons will light up and should flash diag codes

ChineseGuyinthe415

So I get my car back today and after 3 long weeks.....everything is good as new!

Here it is coming from the 3 page work order lol

79385 Internal short, inside drivers power seat control unit, causing recline limit switch, and seat memory switch failure. Ordered (SOP). No codes are stored in seat memory (DPMS) system. Replaced driver's power seat control unit, seat memory switch, and driver's seat recline adjuster/limit switch. Rechecked, also found driver's door multiplex control unit/window switch, internally not making a connection with seat memory system. Faulty driver's door multiplex control unit/window

79385 Performed check seat memory inop. Electrical diagnosis fuse and wires harness okay. Remove seat check seat track okay. Remove seat form know good vehicle and test good. Problem in the seat area. Remove the seat adjust and install in the old seat and check okay. Found faulty seat adjuster (Adjuster was replace by tech 7025 and was defective part) S.O.P seat adjuster. Remove seat adjuster and install back to know good vehicle and put seat back.

Here's the parts totalling in over $1300 all covered by warranty:

1 81628-S3M-A81 M.S.C. UNIT
1 81630-S3M-A61 ADJUSTER. L
1 35961-S3M-A01 SWITCH ASSY.
4 91566-SP0-003 CLIP, BACK COVER
1 35750-S3M-A11ZA SW *NH286L*
1 38800-S3M-A02 SYSTEM UNIT
745114 DRIVER S POSITION MEMORY SWITCH - REPLACE
749140 POWER SEAT CONTROL UNIT - REPLACE. S/B#
851150 RECLINING ADUSTER (LEFT) - REPLACE
744100 POWER WINDOW/VENT SWITCH, LEFT FRONT; INCLUDING CONTROL UNIT - REPLACE
746104 MULTIPLEX UNIT (LEFT/DRIVER SIDE) - REPLACE

I'm soooo glad they didn't condemn my alarm like I had told them. I guess all in all it was the multiplex unit within the seat itself. The seat adjuster was just a defective unit when the dealer received it. I really hope this helps out all you 2G guys with the memory problem!

friesm2000

iTrader: (4)

all under warrenty

camaroracer016

So where is thi multiplex unity thing at? And how much?

ChineseGuyinthe415

its under the seat I believe

camaroracer016

so the real problem is the multiplex unit?

ChineseGuyinthe415

yea should be the problem....an expensive problem haha. Check all wiring and connections first. Then switches.....then the multiplex should be the last of your elimination list

Jacobpockros

iTrader: (1)

I had this same problem and it turned out that all it was, was a switch on the switch itself which was turned to the "off" position from a previous unrelated repair.

cu0ngsayz

iTrader: (1)

awesome 1300 FREE.... cant beat that

tl206

Where is the switch?

tl206

Do you know anything about the mirrors not working as well as the memory seats? I'm having a hell of a time taking my interior apart to try and figure out why my mirrors won't adjust, my memory seats won't work, and my seat heater won't work...

friesm2000

iTrader: (4)

sounds like the driver's seat is disconnected underneth (and i know the mirrors have a memory setting through the memory module, which just so happens to be on the underside of the driver seat)


also btw is your airbag light on also? (if you look underneth and see a yellow connector disconnected, DO NOT RECONNECT/TOUCH IT; unless you feel comfortable working with airbags/explosives)

tl206

I checked under both driver and passenger seats. All plugs are connected, although seems like the ones under the passenger seat were tampered with. A couple of the harness was not mounted on the metal frame of the seat and was just hanging. I do not have an airbag light ON on the cluster. I have a feeling that the module under the driver seat is faulty? Any way I can verify this? The black box under the driver seat that all the harnesses plugs into is the "memory module"?

Jacobpockros

iTrader: (1)

I don't know, the dealer found it, I'm going off of what they told me.

friesm2000

iTrader: (4)

, and iirc you got the color correct too lol

but anyways that would not explain the seat heater though, so the next question for that is do the lights on the center console come on, when you flip the switch? if so you probably have burn out heater elements (both the back and butt ones like to burn out, which you can solder back together for cheap, if you feel comfortable pulling the seat out and what not)

also forgot to ask, do the power seats work? never mind about the memory part.

also when you push the "memory" (the red one) button on the memory control panel on the door, do you hear a beep (car should be in park, and it might also have to be on, i can't recall)




btw: good eye with the harness not being mounted fully, a couple of zip ties will mount that harness back up (or you can buy the correct ones from acura/honda if wanted)

tl206

I forgot to mention that the car is a 2006 TL. I know wrong forum, but I just thought the problem is similar and decided to post. But to answer your questions:

Lights go ON on the seat heat switches when witch to hi or low. Power seats do work, adjust in all directions normally. No beep occur when I push the memory button on the door with the car in parked and in ON position as well as when the car is started. I all out of ideas myself. I've done research and checked everything that various thread states reguarding memory seat and mirror issues. I think the module might be at fault still... I wonder if it would be covered by warrenty (probably not with all the rewiring with the aftermarket alarm).

friesm2000

iTrader: (4)

COMPLETEY DIFFERENT SYSTEM; lol at least the keyless is (instead of outputing signals over dedicated wires like on the 2g, it outputs over the CAN bus instead

and considering that; it should have the same basic inputs and outputs; but as said might be a completely different system (you might be able to look on a scan tool; and view the "memory" module and see what the computer sees, and if there are any codes in the system
basically what i am getting at; is that the 3g TL was a HUGE changeover in the electronics (such as drive-by-wire); so it may actually be easier with the correct tools