valet mode

[vortecfcar]

In order to use the valet mode on the DSP5 OS, must the DSP2 switch be wired to the signal and the ground in the ECM?

Thanks

Nick

[jimter]

I have also wondered if you could use any ground source available to you or, must it be the one on the ECM listed in the documentation.

When I wired mine, I did it just like the print says because I didn’t wont to take the micro-pack plug back apart and run more wire if it didn’t work.

[lakingslayer]

It is recommended to wire it to the ECM ground. This is what the the ECM signals are based on. If you use another ground it may have a different potential than the ECM ground.

Now it probably will work not using the ECM ground depending on the quality of the ground you use. Mine does.

[vortecfcar]

hmmm, I was thinking along simlar lines. Guys not using the ECM ground seem to be having trouble. Just curious if this solved it for anybody.

Thanks Kingslayer

[GMPX]

By using the ECM ground you are ensuring the pin is grounded to the same potential the ECM is at. I don't know the exact switching threshold on the ECM inputs, but, if you connect to a ground with a different potential it might not switch the pin low enough to trigger the input to change state.

Cheers,
Ross

[vortecfcar]

Thanks Ross, I appreciate the help.

Nick