A red flashing car shape light flashing on my 06 toyota sienna van?

not sure but i dont think so they are not transmitters . , think you lost them.

Start when the battery load voltage change ... the lack of instantaneous voltage, all right, normal.

You solution may lie here: http://www.automotiveforums.com/vbulletin/showthread.php?t=497839
Hope this leads you in the right direction!

hi, all lights the first and important battery light this shows RED when the alternator NOT carging:
the oil light shows ORANGE LOW on oil:
the engine managment light shows when engine sensors detect faults shaped like an engine ORANGE light
head main beam BLUE when ON MAIN BEAM
indicator FLASHING GREEN light
hazard warning RED light
brake fluid low light RED looks like this ( )
brake handbrake ON RED light looks like this ( )
side light GREEN looks like a star
most of the important lights are RED or ORONGE gerry

the light is flashing to alert you that there is a problem with the srs or supplemental restraint system (air bag). it is probably flashing a fault code. for example, the light may flash 5x, then pause, then 2x. then a longer pause and repeat. the code would be read as 52. have the code read and the system repaired. dealer repair or someone that specializes in air bag repair is recommended. do not attempt any repair procedure unless you disarm the air bag. stray voltage can set it off.
http://www.shotimes.com/SHO3airbagcodes.html

its th factory instaalled security system activating.

Hi
What is the fault with the car?

regards
dan

Dealer Item ` $200
Junk Yard ~ $100
https://toyotapartscenter.net/toyotasiennaparts.html?gclid=CPX5u8HUlZ4CFSn6agod6Ae1oQ sells them for $167.17 + shipping and tax
PH; 800-516-1455
I recommend a pull, light tap and reconnect, recheck B4 buying. Also, shop manual has proper test procedure, Pages BE16-17

That light means that you are setting the tire pressure guage. there is nothing wrong with the van.

Usualy there is a key hole located near where the passenger air bag off light is. All you do is find the key hole, insert your ignition key and turn to reactivate the air bag. If this doesn't help, i would make a quick phone call to your nearest toyota dealership, and ask for service.
Good luck!