Tachometer install

[Jhnlsm]

Yours is IIA (integrated ignition assembly).
There is a single wire connector hanging unconnected, that is the tachometer signal output connected straight to the (--) terminal of the ignition coil.
Or
On the TDCL (Toyota diagnostic link), there is IGN (---) terminal that you can use

Hopefully I can find that unconnected wire! Please bear with me.

Where is the tdcl?