I'm new to using the Diagnostic Connector so I either have no ECT pin/connector in my setup or I'm not doing something right.

Page 9 of this document http://www.autoshop101.com/forms/h17.pdf says to check voltage reading between ECT and E1 on the Diagnostic Connector. I turned the ignition to ON and inserted the probes, but no reading. The meter reads voltage off the battery so the meter is working. I looked at the ECT and E1 ports and the E1 port is greased and seems to have a pin/connector, but the ECT port is bone dry and looks empty with no pin/connector. The sticker on the lid has the ECT identified, but could it be that there is not an ECT pin/connector in my setup? If there is not one, any ideas on how else I could run this test?

(87 4Runner, 22RE-T, A340H) ECT connector circled in red. I don't see a pin or connector in there ...

 

"The ECT terminal can be designated as TT or T1 depending on the vehicle model."

On my '94, it's Tt.

Why don't measure the voltage from "T" to E1? (E1 is ground. E1 to B+ should be battery voltage.).

 

Nope, I take that back.

Your T terminal is used for setting initial timing (jumper T to E1, then set timing). It's now called TE1.
http://www.cygnusx1.net/Media/Supra/...taTech/h23.pdf

So I can't help you on the transmission diagnostics.

 

1987 seemed to be the model year where Toyota was transitioning from multiple diagnostic connectors and integrating them into a single diagnostic port.

My 1987 Toyota Truck & 4Runner Repair Manual (FSM) shows that your 4Runner may have the older DG terminal, even though you have the newer style diagnostic port:



Better picture of DG Terminal location:

 

Thanks for the link, scope103.

old87yota - That looks to be my setup because I have that DG Terminal on my 87. Thanks for the help.