daddyoisback

iTrader: (6)

snap-on says no communication...i checked the data wire from the pcm(green) but the wire coming off the DLC is purple...well that wire goes to this plug and so does the green wire wth???

daddyoisback

iTrader: (6)

sorry guys... 2002 v6 is the car....2000 is the pcm(0411) made my own 24x harness so i know the wire off the pcm is in the rite port

toplessHO

iTrader: (25)

thats the common buss for serial communications
commonly called a splice pack
just a junction for the serial data lines in the front of vehicle
you can separate the wires at the splice pack and see whats communicating and what isnt.

daddyoisback

iTrader: (6)

ok thank you, I put the data wire straight from the pcm to the dlc still got no communication... I will see where the rest of the wires go and what they do. and my old scanner only goes to 99 but it should do OBDII basic for just codes...mite have to use a diff scanner to see what it will do

nvscott5

I would check the power and ground to the DLC before breaking up the splice pack.

daddyoisback

iTrader: (6)

the scanner gets it's power from the DLC, i did put my multi on them and power n grounds are good

toplessHO

iTrader: (25)

shouldnt have to "break it up" so to say
they connectors are pinned into the connector body and can be released.
just make sure they go back in the same spot

daddyoisback

iTrader: (6)

ok did some more checking today, seems I get 12.40 volts from the signal wire...am I suppose to get volts from that wire?

toplessHO

iTrader: (25)

what are you using as the reference for this measurement?

toplessHO

iTrader: (25)

whoops duplicate post mods please remove

daddyoisback

iTrader: (6)

multi meter....

toplessHO

iTrader: (25)

no from where to where?

daddyoisback

iTrader: (6)

omg i'm a *** I wait out and rechecked it, I left the red lead in the 12v const port while I checked both grounds and the signal ports....ok I have 12v at the orange, both grounds checked out good and I got nothing from the purple, which is the way it's suppose to be. i.m going to have to get a new scanner and see if it will work

toplessHO

iTrader: (25)

scanner doesnt care if its one year older
I dummied up a spare BCM I have here and it got 8.6v at serial
I will check one thats operating and see but voltage should vary
Im thinking from 0-5vdc on comm line
what model of scanner and what module are you using?
Im using MT2500 with the latest (last one) black cartridge

daddyoisback

iTrader: (6)

MT2500 with the troubleshooter cartridge mt25002999/primary cartridge mt25001099 with the obd2 conn. with key2 so i should be able to at least read codes... both cartridges only goto 99 i even try'd to trick it and put in a vin# and it still said no comm??? by the way thank you for your help!

toplessHO

iTrader: (25)

Hummm I think Ill slide a 99 cartridge in mine and see if it reads an 02 or 03
Ive upgraded to the last version of the black ones so Im good to 06.
and yes you should be able to do generic OBD2 so somethings off.