passenger weigh sensor

Home / the12volt's Install Bay / Car Security and Convenience / passenger weigh sensor (

Topic Closed)

Welcome Guest :)

Members

Next Page > < Prev Topic Next Topic >

russbm

Member - Posts: 46

Joined: December 17, 2007

Location: Kentucky, United States

Posted: August 28, 2010 at 9:16 PM / IP Logged

Wow this is a weird one Just got this info about the seat heater pad on top of the weigh sensor is causing the the air bag light to come on. Then I lift off the heating pad off the weigh sensor it goes off. Anyone heard of this?

i am an idiot

Platinum - Posts: 13,674

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: August 28, 2010 at 9:50 PM / IP Logged

I have no idea about your vehicle, but I can tell you that if a Toyota key is turned on and it senses a body in the seat, and for some reason the weight is lifted the light will blink on the entire time that the weight is off of the seat. Learned that with a laptop sitting on the seat. Hit a bump and when the laptop would lift off of the seat the lamp would blink. I know it is opposite of your problem.

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: August 29, 2010 at 2:54 AM / IP Logged

Depending on the vehicle, use diagnostic system to clear/reset to cure the problem.

Had an S type Jag recently, when you turned on indicators to the right the rear right was dim and the brake light adjacent came on as well. First thought bad ground then I checked, found that all the lighting constants are pos and switch through the neg. All separate constants, must go through the multifunction module.

first problem, our diagnostic software could't read this (05) Jag and WTH is the m/module?

Ended up looping over from another constant and checked, no DTCs, job done.

KPierson

Platinum - Posts: 3,527

Joined: April 14, 2005

Location: Ohio, United States

Posted: August 29, 2010 at 7:14 AM / IP Logged

Many "smart" air bag systems will disable themselves if they detect a child in the front seat. So, if the sensor "sees" that something is in the seat and it weighs less then a preset amount it turns the air bag off.

If someone is sitting in the seat does the light turn off?

Kevin Pierson

i am an idiot

Platinum - Posts: 13,674

Joined: September 21, 2006

Location: Louisiana, United States

Posted: August 29, 2010 at 7:43 AM / IP Logged

Good point Kevin. If it does turn out to not light up with a person sitting, you may want to try a thin piece of really soft foam with a hole cut in it, the hole should be slightly larger than the sensors area. This should shield the sensor from the extra weight of the heater, yet should yield same as before operation with a child or grown up in the seat.

russbm

Member - Posts: 46

Joined: December 17, 2007

Location: Kentucky, United States

Posted: August 29, 2010 at 10:45 PM / IP Logged

Thanks for all the respond here. There is no one sitting in the seat, it just the seat heater pad is right on top of it and the air bag light switch from off to on and no one is sitting on the seat, so i lifted the seat heater pad off the seat it goes back from on to off like it a magnet or something some kind of signal causing it to go from off to on. I notice when we did a lot of Nissan altima we install seat heater on them and the passenger seat on the altima has some kind of felt clothe on top of the weight sensor. we never had any problem with the altima. But this Customer Chevy Traverse did not had anything on top of it weight sensor we try vinyl material, plastic, Foam over the entire cushion, must be some kind of signal between it causing the the on light to stay on.

KPierson

Platinum - Posts: 3,527

Joined: April 14, 2005

Location: Ohio, United States

Posted: August 30, 2010 at 5:35 AM / IP Logged

If you sit in the seat does it cause the light to turn off.

It is not magnetic, it is weight that the sensor is looking at. The sensor is detecting something is in the seat that isn't heavy enough to survive an air bag impact so it disables the air bag on the passenger side. Try i am an idiots idea.

Kevin Pierson

russbm

Member - Posts: 46

Joined: December 17, 2007

Location: Kentucky, United States

Posted: August 30, 2010 at 5:39 AM / IP Logged

No it does not cause the light to go off when you sit in the seat.

russbm

Member - Posts: 46

Joined: December 17, 2007

Location: Kentucky, United States

Posted: August 31, 2010 at 4:38 PM / IP Logged

Is there anyone out there that might have a solution to this problem is there something that can be put in between the Seat heater pad and weight sensor to block the magnetic field flow between them? This Customer still want seat heater on the passenger side.

KPierson

Platinum - Posts: 3,527

Joined: April 14, 2005

Location: Ohio, United States

Posted: August 31, 2010 at 7:32 PM / IP Logged

Why do you think that the "weight" sensor is being affected by a magnetic field instead of the weight of the heater pad?

Have you tried the idea above to cut out an area around the weight sensor so the pad doesn't sit directly on it?

Kevin Pierson

Next Page >

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.