Seats not holding memory.

[Olblue75]

Having issues every now and then with seats holding their memory and sometimes the back doors will unlock and sometimes they won't with the key fob. Replaced the battery and alternator. Even replaced the battery in the key fob still no effect. Any ideas took dealership said they couldn't duplicate go figure.

 

[DenaliAK]

Original FOB? Mine are all screwed up since getting an auto-start, but I think that is because the FOB is connected to the personalized settings.

 

[bluetorpedo]

Try replacing the relays labeled "UNLCKJMPR" and 'DRVRUNLCK" i belive they are labeled had the same issue with my 01 they are located in the fuse block beside the instrument cluster

 

[puckhead]

Try replacing the relays labeled "UNLCKJMPR" and 'DRVRUNLCK" i belive they are labeled had the same issue with my 01 they are located in the fuse block beside the instrument cluster

Thanks! I will also have to try this, mine havent held memory since I got it

 

[bluetorpedo]

The relays wont help seat memory, they will help with the lock and unlock isses.

as for seat memory I'm not 100% but i belive thats a memory module in the door where the memory buttons are. the module maybe defective/loose wires. the other option is the PCM it may need it enabled in order to seat memory or that function of the PCM may not exist/is malfuntioning

 

[Olblue75]

Which PCM are you talking about. Where's is the best place to get a new door module?

 

[bluetorpedo]

only one PCM (powertrain control module)

the seat functions are controled the the BCM (body control module) check with a scrap yard see what you can find. it'll be expensive to buy from the dealer.


PCM does engine functions (timings, shifts, etc etc)

the BCM handles interior and body functions (power seats, climate control, power mirriors, and headlight controls to i belive)