testing for speed sense wire!!

hey guys, i just installed an alpine navigation system in a 2003 toyota sienna, and the techsoft i got for it says its a violet and yellow wire at the ecm, well i found that wire, but it doesnt test. i havent doen much navigation, but i was always told that it pulses ground as you move the car. dei tech line says that the 2000 should be the same as the 2003, and sent me the 2000 techsoft. I've found one for a 2002 on the dei website, and its the same as the 2000. am i testing this wire wrong? could it be the right wire, where else can i find it? thanx guys ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        |

|              12V|wht/red & wht/blue  |+  |ignition harness            ||          STARTER|red                 |+  |ignition harness            ||         IGNITION|BLACK / YELLOW        |+  |ignition harness            ||  SECOND IGNITION|BLACK/ red           |+  |ignition harness            ||        ACCESSORY|blue                |+  |not required for r-start    ||       POWER LOCK|blue/white          |-  |passenger kick panel  *1    ||     POWER UNLOCK|blue / YELLOW         |-  |passenger kick panel  *1    ||       LOCK MOTOR|blue/red            |   |integration relay *8        ||     UNLOCK MOTOR|blue/black          |   |integration relay *8        ||    DISARM DEFEAT|blue/red            |   |integration relay *8        || PARKING LIGHTS +|green               |   |bottom of fuse box          || PARKING LIGHTS -|GREEN/ orange        |   |combination switch harness  ||       HEADLIGHTS|RED / green           |-  |combination switch harness  ||     DOOR TRIGGER|RED / white           |-  |top right side of fuse box  || DOME SUPERVISION|RED / black           |-  |right side of fuse box      ||  TRUNK/HATCH PIN|GREEN/ black         |-  |top right side of fuse box  ||         HOOD PIN|black               |-  |at light or theft ECU *2    ||TRNK/HTCH RELEASE|GREEN/ YELLOW *9     |-  |switch on dash below radio  ||  FCTRY ALARM ARM|arms with lock      |   |                            ||FCTRY ALRM DISARM|disarms with unlock |   |                            ||       TACHOMETER|*3                  |   |*3                          ||      SPEED SENSE|violet / YELLOW       |   |at ECM below glove box      ||       BRAKE WIRE|GREEN / WHITE         |+  |brake switch or fuse box    ||     HORN TRIGGER|GREEN/ black         |-  |steering column             ||           WIPERS|blue/blk, blue/org  |+  |wiper switch *4             ||  LF WINDOW UP/DN|green   -    red    |A  |in drivers door at switch   ||  RF WINDOW UP/DN|grn/wht  -  RED / blue|A  |in drivers door at switch   ||  LR WINDOW UP/DN|red   -   yellow  *5|A  |must go to motor (rear vent)||  RR WINDOW UP/DN|red   -   yellow  *5|A  |must go to motor (rear vent)|| SUN RF OPN/CLOSE|red   -   green     |A  |at motor or sunroof relay *6||   SUN ROOF LIMIT|RED / blue or grn/wht |-  |at sunroof relay  *6        ||        RADIO 12V|blue / YELLOW         |+  |stereo or amp *7            ||     RADIO GROUND|brown               |-  |stereo or amp *7            ||     RADIO SWITCH|gray                |+  |stereo or amp *7            || RADIO ILLUMINATE|WHITE/ green         |-  |dimmer switch               ||       LF SPEAKER|pink   -   violet   |non|stereo or amp *7            ||       RF SPEAKER|lt. green  -   blue |non|stereo or amp *7            ||       LR SPEAKER|black  -   yellow   |non|stereo or amp *7            ||       RR SPEAKER|red   -   white     |non|stereo or amp *7            |

Frank

MECP 1st class installer.

Frank,You're right about how the wire should test. as the car rolls it should pulse ground. Not sure about the 2000 being the same as the 2003 though. DEI is usually pretty good with this stuff. If all else fails alpine makes a speed pulse generator.good luck

The install instructions have a number to call alpine.  They are usually pretty good about giving the vss wire information to customers if not have the shop that sold it give them a call.  And yes the the speed sense is digital and will either be nothing or a ground and you do have to move the car about 6 feet to test so it is a good idea to have a second guy there to test.  Worst case it will be at the transmission.Certified Security Specialist

Always check info with a digital multimeter.

I promise to be good.

Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

i tested at the transmission, and also at the cruse control under the hood, all the wires either rested at ground, rested at 12volts, or had nothing no matter how far i moved the car. Frank

MECP 1st class installer.

Have you tested wires at the intrument cluster, it may be there if all else fails.  Otherwise I would call alpine.Certified Security Specialist

Always check info with a digital multimeter.

I promise to be good.

Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

i tested a few behind there. (the violet and yellow wire is also there) but it is the same wire from the ecm. which leads me to believe even more that it is the correct wire, but i dont know why it wont test.  when i tested i rolled it about 6-8 feet, is that enough? i used my logic probe from snap-on, i'll try agian with my meter tomarow. (thats when he is comming back to have that wire hooked up). otherwise i'm gonna call the dealership along with alpine. thanx for the help guys.Frank

MECP 1st class installer.