Power Seat Problems - Seat Leans or Wont Move

I never noticed it because im fairly tall, but a guy came to test drive my car yesterday, and the drivers seat wouldnt move far enough forward for him to reach the pedals. Th passenger seat moves all the way forward, but the drivers seat only moves forward two inches or so. All of the other functions for the power seats work fine. There is nothing jammed in the tracks that i can see.

Hi guys,
My passenger power seat goes all the way forward and starts going back but, doesn't go all the way, further inspection when i hold the motor when moving the seat back, it will struggle till it stops, i think its the motor, where can i get a new motor or is that even the problem?
Thanks!

Hi to all...

I am having a hard time troubleshooting the seat mess in my 1999 Riviera. The memory switch works fine with position 2 set to send the seat all the way forward and all the way up, exit will send the seat all the way back and all the way down, but manually the seat will only move down and back. So motors are working and I figure the switch is bad. I replaced the switch on the seat with a NOS that I verified as fully functional but the problem persists. I fear the much dreaded memory module is to blame but none are available.

Any thoughts?

Ted

Can you read a schematic?

I am an Electrical Engineer. I hope I can read a schematic or I wasted all that education....

Dagwood(TSRW) wrote:

I am an Electrical Engineer.

Oh boy. Logic has just gone out the window! JK. I'm a "technician". Hopefully you get the joke....

Here's the schematics for the Driver Seat.

This is for the SEAT SWITCH relative to the motors


This is for the SEAT SWITCH relative to the Memory Seat Module


Here is the SEAT MOTORS and POSITION SENSORS


Finally, here's the entire POWER/GROUND distribution for the LH seat.


I'm not all that great at diagnosing Interior stuff, but I can try and help....

Thanks! I appreciate this!

Dagwood(TSRW) wrote:

Hi to all...

I am having a hard time troubleshooting the seat mess in my 1999 Riviera. The memory switch works fine with position 2 set to send the seat all the way forward and all the way up, exit will send the seat all the way back and all the way down, but manually the seat will only move down and back. So motors are working and I figure the switch is bad. I replaced the switch on the seat with a NOS that I verified as fully functional but the problem persists. I fear the much dreaded memory module is to blame but none are available.

Any thoughts?

Ted

After your troubleshooting:

- look for evidence of the memory module having been inundated with eater or otherwise compromised (it is under the seat, after all, people spill stuff there sometimes)

- if you need a replacement module, try Ed Morad (moradpartscompany.com or ebay)

- you may be able to open and inspect the module and test/replace components at the component level.

Albertj