Ignition to Starter Cable
- Thread starter UpbeatFish
- Start date
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=038
it shows a black with blue. its a ground wire and then power comes straight from the battery. i saw one the other day that was orange brown kinda color but it was a 86.5
it shows a black with blue. its a ground wire and then power comes straight from the battery. i saw one the other day that was orange brown kinda color but it was a 86.5
hvyman;1214281 said:
Yes, it is a black with Blue tracer, but It is NOT a ground!!!!!!!!!
The starter has two connections +12V from Battery (positive battery cable) and the 10ga black with blue tracer wire from the ignition switch.. The Ign switch sends +12V to the starter solinoid to engauge the starter. The current then flows through the battery cable to operate the starter.. Think of the solinoid as a Heavy duty relay
Nothing comming off of the ignition switch is a ground.
cjsupra90;1214365 said:
oh my god where is the solinoid located
thats the most important thing right now for me
UpbeatFish;1214424 said:
Its part of the starter!!!!!!
The solinoid is the part that the battery cable and ignition start signal wires hook up to..... The Bolt terminal is for the battery cable and the small spade terminal next to it is where the ignition start signal wire goes.. The starter body is the Ground..
the starter has power straight from the battery. and then ground form the harness.
it is better for the circuit for ground control which the starter has..
if you look at he schematic the starter has direct power from the battery and then has ground control for it to start the starter motor.
it is better for the circuit for ground control which the starter has..
if you look at he schematic the starter has direct power from the battery and then has ground control for it to start the starter motor.
Yes, it is a black with Blue tracer, but It is NOT a ground!!!!!!!!!
the starter has 2 connections power and ground. it has power from the batt and ground from the harness. i think u were thinking the same thing i was but in a different way.
cjsupra90 said:
the starter has 2 connections power and ground. it has power from the batt and ground from the harness. i think u were thinking the same thing i was but in a different way.
hvyman;1214506 said:
What schematic shows that?
hvyman;1214510 said:
It's different in that he's right and you're wrong. The only ground on the starter is through it's body to the engine block. Starter control from the harness is 12 volts.
And it is a solenoid, not solinoid, silinoid, or any other spelling or wrong pronunciation of the word. 
hvyman;1214510 said:
Ummm, NO!!!!!!!!!
The stater technically has 3 connection, the third although is not a wire connection, it is the ground. That connection is made when you bolt the starter to the engine / Trans.... The body of the starter is ground. Just like I said, think of the Solinoid as a big heavy duty relay... 12V supply from Battery into solinoid, and out to the starter once the solinoid is active. To activate the solinoid, you supply 12V to the other small Spade terminal (done via the Ign. SW.) All circuits internally in the starter go to the starter case for thier ground paths, through the engine block, through the ground cable and back to the battery negitive terminal... There is your complete circuit.. Look at the link that you even posted, shows the same thing...
If the Black with blue wire went to ground, you would pop the AM2 IIRC (might be AM1 though, dont quote me on it, I cant remember off the top of my head which one) fuse instantly as you turn the key to start position...
Like I said, no wire coming off the Ign. SW is a ground.. They are all 12v Supplies..... Everyone of them....
Hell, that was a waste of time typing that... JJ had already said the same thing... I guess I should read the rest before posting....
Nick M;1214609 said:And it is a solenoid, not solinoid, silinoid, or any other spelling or wrong pronunciation of the word.
Haha, funny!!!! I never said that I could spell correctly...
easy easy
getting crazy right now lol
see the problem i have right now is that when i turn the key the car doesnt start but all the signs that its going to start, work. such as the lights and the click.
i have a power cable straight to the starter that makes the starter....umm....start haha...well the car.
so power cable starts the car
but turning the key doesnt.
AND AN OTHER THING....
the car starts but then it turns off
i have to warm up the car by keeping the rpms to ...lets say 1500
once warm, the car drives like a new car
is there a cold start.. thing that tells the car its cold and keeps it from going off?
so my questions are:
why doesnt the car start by turning the key?
why does the car turn on and turn off right away? (it stays on if i warm up the car)
getting crazy right now lol
see the problem i have right now is that when i turn the key the car doesnt start but all the signs that its going to start, work. such as the lights and the click.
i have a power cable straight to the starter that makes the starter....umm....start haha...well the car.
so power cable starts the car
but turning the key doesnt.
AND AN OTHER THING....
the car starts but then it turns off
i have to warm up the car by keeping the rpms to ...lets say 1500
once warm, the car drives like a new car
is there a cold start.. thing that tells the car its cold and keeps it from going off?
so my questions are:
why doesnt the car start by turning the key?
why does the car turn on and turn off right away? (it stays on if i warm up the car)
The starter solenoid, in addition to being a solenoid for the plunger, is a relay for the motor. Not to confuse some of you. The EWD probably shows a picture of it.
Nick M;1215224 said:
Ah yes hence the "solenoid" terminalogy but from an general electronics stand point, its still just a heavy duty relay....
Still a good point about the plunger part....
UpbeatFish;1215070 said:
So which is it, does it start or not????? First you say it doesn't but then you say that when it does, it shuts down...... Im confussed....
About it not starting: first thing is to unplug the smaller (10ga) wire from the starter solenoid and put you meter on it and have someone turn the key and see if you get 12v on the wire while key is in the crank position... If you do, then I would suspect a bad starter Giving that the battery is good and the cables and cable connections are good... If you dont get 12v on that wire then you going to need to daignose that circuit and see where your loosing the 12v at... Could be a bad relay, could be a bad Neutral start / safty switch if its an auto car or could be a bad clutch start switch if its a manual car.. could also be a bad ignition switch (dirty or corroded contact on the start contact).....
As for the starting then dying part, I would more then likely suspect a bad coolent temp sensor or a problem in that circuit... First off, the car should start without the cold start unless your in a really cold climate... It sounds like the cold start is working fine and the car dies when the cold start cuts out. The time that the cold start function opperates is based on coolent temp read by the cold start time switch and at a certian point the switch shuts down the cold start and the engine warm up function takes control of warm up enrichment based on coolant temp....
Heres a link for checking coolent temp sensor.. try this and see if it is in the correct range..
http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=113
cjsupra90;1215356 said:
it doesnt start by turning the key but it starts when i connect a power cable to the starter. so the starter is good. and the bat is good
i think its that temp sensor
but since im a huge electical dummy
i had no idea what you said
haha
where is it located?
maybe some of the wires are bad
UpbeatFish;1215475 said:
In all honesty, if your as you put it "a huge electical dummy", then your better off either finding someone in your area that knows what they are doing to come over and look at it or give you a hand with it or take it somewhere. Its to hard to explain if you are not atleast somewhat familiar with the systems and how they function....