V70 2003 Egnition Key signals

forhike · Post by **forhike** » 08 Jan 2023, 13:19

Hello!

Im trying to figure out the signals in the key lock but strugling in the v70 schematics file.

I found key part and only found this, but dont know what signals is on the pins. I can see some goes to cem but dont know what signals it is. Like ecm, radio, light?

Pos 3, adds signal to 50, and drops signal to X and 151, so guess 50 is starter.
What are signal X?

If going from pos2 to pos1 it drops signals: 15, 15 and 151

But what are signals 15,15 and 151?

30
15
15
X
151
S
50 starter?

Hope anyone know abit more

forhike · Post by **forhike** » 08 Jan 2023, 15:08

50 is starter
15 i think is can perhaps, i gues if i check cable and its twined if its can, should go to cem if i understand correct, but can a can cable be switched on off ? Should it not be a pair going to next module

But have no clue about x and 151

Stu70 · Post by **Stu70** » 09 Jan 2023, 02:00

X - is accessory position -
151 and 15 are for other accessories/modules fed from the CEM - as you turn key from 1-2 different things turn on (modules etc) , as you go from 2-start it turns other accessories off like lights, radio etc that are high draw but not essential to a start. But keeps other modules running essential to a start. Does that make sense ?

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forhike · Post by **forhike** » 09 Jan 2023, 03:20

Thanks that helps alot

My main problem is that when i run car it hold programmed vmax speed, but if turning key fast from post 2 to betwean pos 1 and 2 and back to post 2, car rushes and goes above programmed vmax, every time i make that thing with the key cars gains 4kmh above programmed vmax.

So guesing some signal on pos 2 gives some signal from cem to ecu, and when losing that signal a short time due to power loss system settings are bypassed.

I know its not great foor the engine, but the law says it should not do that, and when they do car inspection thats one test. So its not passing registration at the moment

Stu70 · Post by **Stu70** » 09 Jan 2023, 03:31

Oh no - I have no ideas how to get around that problem. There must be others that had issues similar yours - might be quicker and less of a problem to give the car to an automotive electrician or even the dealer.
I wish you luck