in need of some help!!!

[aznofmuff]

so what do i do with the multimeter? do i measure the current or the voltage or the resistance?! id so how do i measure the voltagee without the battery and etc... thanks again!

[CTScott]

Originally Posted by aznofmuff

so what do i do with the multimeter? do i measure the current or the voltage or the resistance?! id so how do i measure the voltagee without the battery and etc... thanks again!

Voltage. Stick the tip of the red lead into the back of the connector, touching the metal of the pin while holding the tip of the black lead to a ground (the metal body of the key switch is fine as the ground).

Measure first with the ignition off and key out and then a second time with the key in and rotated to start. Record the voltage seen on each color wire in both of those modes.

[aznofmuff]

hey scott, these are the measurements i recorded for the wires.
GREY [ 14.4v off, 14.4v on, 14.4 v start]
YELLOW [ 14.4 off, 14.4 on, 14.4 start]
BLACK [0v off, 0.01 v on, 14.4 v start]
PINK [0v off, 14.3 on, 14.4 start ]
WHITe [0 off, 14.33 on, 0 start]
GREEN [0 v off, 14.43 on, 14.43 start]

thanks!

[CTScott]

Originally Posted by aznofmuff

hey scott, these are the measurements i recorded for the wires.
GREY [ 14.4v off, 14.4v on, 14.4 v start]
YELLOW [ 14.4 off, 14.4 on, 14.4 start]
BLACK [0v off, 0.01 v on, 14.4 v start]
PINK [0v off, 14.3 on, 14.4 start ]
WHITe [0 off, 14.33 on, 0 start]
GREEN [0 v off, 14.43 on, 14.43 start]

thanks!

OK - That is all correct.

What I would like you to do next is to swap two relays for me in the under hood fuse panel, to see if the ST relay is bad.

In the diagram below of the fuse box there is the "HTR SUB1" Relay and the *10 Relay (which is the "ST" relay). They are both the same type of relay, so you can safely switch them for a test. Swap them and then try to start it.

[aznofmuff]

hey scott, i just went to look at the fuse book and i dont have the hrb sub 2 relay. just the st relay. i took the st relay to have a look and its got what looks like black ink around the metal connects, is this normal? and is there anything else i can do?! thankssss again for the help

[CTScott]

Originally Posted by aznofmuff

hey scott, i just went to look at the fuse book and i dont have the hrb sub 2 relay. just the st relay. i took the st relay to have a look and its got what looks like black ink around the metal connects, is this normal? and is there anything else i can do?! thankssss again for the help

HTR SUB1 is only on Yaris with the supplemental heater, so some don't have it.

The black is normal on the base of the contacts. If you have a 9 volt battery on hand you can touch it to the two contacts on the left side of the picture below. When you do so the relay should click.