Permanently remove passenger seat?

[TerribleTim]

Scott
Found the link to your bypass module. Tnx. Looks good, but site says they're out of stock and backordered. Did more research on this site and didn't realize that passenger blk box was on the bus. With a uprocesser, I should have known.

Took another look at my seats. The seat belt latch switch is just 2 wire so it should go on the Camry seat easily. The center bolts are even the same size. Do you know offhand if the latch switch is magnetic or contact? Just curious.

On the other hand, there looks like four load cells, one in each corner of the seat frame with a 3 wire connector on each going to the blk box on the passenger seat. This seems like major overkill. Keeping Japanese electrical engineers employed. Thought maybe it was to modulate the intensity of the airbag pop, but without one on the driver side, this doesn't make sense. It would be better to modulate this based on the g forces of the crash anyway which is a different sensor. Any thoughts on the rationale behind this very complex weight sensor??

Anyway, the four sensors look like a major PITA to remove. I just want to fool the system into thinking the seat is always loaded, so the airbag is enabled whenever the seat belt is latched (like the driver side). On the chance that these three wire sensors are analog, is there a way to jump or shunt them at the harness plug to "keep the SRS happy"??
That way I could just leave the blk box and four "rigged" plugs under the new seat.

Trying to find wiring diagram for the seat, specifically the blk box, but no luck.
TT

[CTScott]

Originally Posted by TerribleTim

Scott
Found the link to your bypass module. Tnx. Looks good, but site says they're out of stock and backordered. Did more research on this site and didn't realize that passenger blk box was on the bus. With a uprocesser, I should have known.

Took another look at my seats. The seat belt latch switch is just 2 wire so it should go on the Camry seat easily. The center bolts are even the same size. Do you know offhand if the latch switch is magnetic or contact? Just curious.

On the other hand, there looks like four load cells, one in each corner of the seat frame with a 3 wire connector on each going to the blk box on the passenger seat. This seems like major overkill. Keeping Japanese electrical engineers employed. Thought maybe it was to modulate the intensity of the airbag pop, but without one on the driver side, this doesn't make sense. It would be better to modulate this based on the g forces of the crash anyway which is a different sensor. Any thoughts on the rationale behind this very complex weight sensor??

Anyway, the four sensors look like a major PITA to remove. I just want to fool the system into thinking the seat is always loaded, so the airbag is enabled whenever the seat belt is latched (like the driver side). On the chance that these three wire sensors are analog, is there a way to jump or shunt them at the harness plug to "keep the SRS happy"??
That way I could just leave the blk box and four "rigged" plugs under the new seat.

Trying to find wiring diagram for the seat, specifically the blk box, but no luck.
TT

I can sell you one of the bypass modules directly if you want.

For the buckle latch there is a hall effect sensor in there with some active electronics. Kind of overkill, but a way for them to make it hard for people to bypass it. The Camry buckle may be the same depending on the vintage of it. If not, my module can handle bypassing the buckle switch as well.

The weight sensors are load cells, but they are not just simple resistive devices. They each have a microcontroller on them that speaks over the LIN bus between the sensors and the Passenger Occupancy ECU. My module emulates them and speaks the the ECU over the LIN bus.

[JustPassinThru]

Originally Posted by TerribleTim

On the chance that these three wire sensors are analog, is there a way to jump or shunt them at the harness plug to "keep the SRS happy"??
That way I could just leave the blk box and four "rigged" plugs under the new seat.

Trying to find wiring diagram for the seat, specifically the blk box, but no luck.
TT

On the basis of what CTS and others have told me privately...NO.

The seat sensors are logic units...microprocessors. Jumping them will probably cook something.

FWIW...I've had the passenger seat out twice, for traveling and a big move. It shuts down the SRS airbag system and sends the passenger-belt warning flashing, but it doesn't hurt anything else. And it all goes away as soon as you plug the seat setup back in.

So...if you're willing to risk traveling with only your harness...just pull it out. If that flashing seat-belt light bothers you, do what I did: use a small Post-It note, or cut out a small piece, to glue on the face over that warning light.

I traveled Wisconsin to Florida and back, and then Wisconsin to Montana and back and again...all those miles disconnected. Once the seat was reinstalled, everything was fine.

[CTScott]

Originally Posted by JustPassinThru

On the basis of what CTS and others have told me privately...NO.

The seat sensors are logic units...microprocessors. Jumping them will probably cook something.

FWIW...I've had the passenger seat out twice, for traveling and a big move. It shuts down the SRS airbag system and sends the passenger-belt warning flashing, but it doesn't hurt anything else. And it all goes away as soon as you plug the seat setup back in.

So...if you're willing to risk traveling with only your harness...just pull it out. If that flashing seat-belt light bothers you, do what I did: use a small Post-It note, or cut out a small piece, to glue on the face over that warning light.

I traveled Wisconsin to Florida and back, and then Wisconsin to Montana and back and again...all those miles disconnected. Once the seat was reinstalled, everything was fine.

If any portion of the SRS system is in an error state the airbags will not deploy in a crash, so by driving with the passenger occupancy system being in an error state you have the entire SRS system in fault.