Pass key instructions

[Rodd]

What are the pass key instructions for adding a new pcm? I can't find them anywhere searching the site. Can anyone help?

 

[Edzzed]

If you got an aftermarket ecm it should have come with the instructions. Been a long time but Heath tried starting the engine and left the key on for 1/2 hour, tried starting it again after the security light went out and waited for a while with key on before trying again when it accepted the commands. Bill Heath also said he could use the tech 2 to force acceptance but at some point in the future it could forget the command to start. I believe the koko procedure is the way to do it but wait for others to comment on that.

 

[Rodd]

Thanks Ed. I think it is is key on for 10 min then key off for 10 min then on then off..... I just want to make sure I do it right.

Rodd

 

[Edzzed]

Try this, it is a pdf file so will expand.

View attachment 6.5 koko.pdf

 

[Rodd]

Thanks Ed! This is what I was looking for.