Question for everyone - I am swapping to power seats in my 99 Blazer and after putting in the driver side I have front/back/tilt movement but the lumbar and recline functions do not work. I checked voltage coming from the switch for the recline and it is working, but I am not hearing any motor noise whatsoever when I move the switch.

So here is what I'm curios about:

1) How do I get to the recline motor? (not sure how to disassemble the seat)
2) Is the lumbar/recline problem connected?
3) Any other suggestions?

Thanks in advance!

 

sounds like the seat recline motor is out, you have to remove the seat, then the backrest and tear the seat down.... but before u tear it down see whats accessable with it upside down on a bench

by moving the switch u should be able to tell which motor does what

 

Please take a look at the attached.

In the first picture:

1. Seat Horizontal Motor
2. Seat Adjuster Switch
3. Seat Front Vertical Motor Connector
4. Seat Front Vertical Motor
5. Connector C317 (LH)
6. Seat Rear Vertical Motor Connector
7. Seat Rear Vertical Motor
8. Seat Horizontal Motor Connector

In the second picture:

1. Seat Back Cushion, Top
2. Seat Recliner Motor
3. Seat Lumbar Motor
4. Lumbar Support Grid

To get at the recline & lumbar motors, you'll need to pull the cover off of the back of the seat or at least enough to get your hand in there and get the connectors off the motors to test for power/ground to each motor that is not working.