M104-AMG

iTrader: (8)

While diagnosing my Airbag 3-blink fault, I found this "yellow" wire shorting out (just stuck in) a the "blue" connector connected to black relay labelled, "H302" ?

What's the function of relay H302 it is shorting ?

TIA,
:-) neil

PS: if you know which module is the Airbag diagnostic, please let me know, or where to look.

ObliqueFD

iTrader: (32)

That is the starter cut relay for the security system. The yellow wire is from an aftermarket security system to disable the starter when the alarm is set off.

M104-AMG

iTrader: (8)

The car doesn't have an aftermarket security system- at least one that I know of. I have the original keys, and no key FOB as well.

The yellow-wire isn't even crimped or soldered into place.

Basically, someone cut a piece of wire, stripped the ends, and shoved it into the connector pins. It basically bypasses the relay.

Should it wiggle free, I assume I won't be able to start the car.

Yikes!

:-( neil

PS: now where is that airbag diagnostic controller . . .