Question about 1986 Toyota Corolla 2 Door

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'86 corolla relay switch- how much and where can i get one?

I was told my '86 corolla needs a new ignition relay switch. i need to know where i could get one for a reasonable price and how much it'd be to get in installed.

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There is not such a thing as ignition relay sw.send me an email to I can help you,i am an electromecanic with specialty in 1984/1987 corollas. If you send a tel. no. I can call you.

Posted on Feb 15, 2010


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What all does that fused supply B+ voltage too ? Do you know ? That would be your first thing to find out ! Do you know what a electrical distribution diagram is ? Do you know how to test electrical circuits with a DVOM - digital volt ohm meter ? Do you know what a short to ground is ?
Which fuse ? IGN A - 40 amp ,under hood fuse / relay box ? This fuse powers the Starter Relay and Ignition and Start Switch
Does your vehicle have a manual or automatic transmission ? The starter relay could be shorted inside , It's also located in the under hood fuse box . If you pull the relay out of the box it's plugged into an look on the bottom of it you would see four sets of numbers ! 30 & 87 an 85 & 86 . If you were to jump 30 to 87 in the relay box the starter should spin the engine over , not start an run just spin ! 85 & 86 is the control side . Could be the ignition switch !
That 40amp fuse powers a lot of subsystems !

Here is a web site for free diagrams ! Enter vehicle info. year , make , model an engine , Under system click on electrical distribution , under sub system click on power distribution . Then click the search button .Click blue links one at a time . First blue link scroll down to the second diagram . You will see Ign A 40 amp fuse at the top of the page .you will also see it powers the igintion switch ,look at last part of ignition switch , when in start or run that 40 amp fuse powers all those other fuse's plus three relays i see there also . A/C compressor relay , rear window defroster relay ,daytime running lights . Any one of those circuits could have your short . You need to isolate the circuits , pull fuse's till the fuse doesn't blow !

May 27, 2017 | Cars & Trucks

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Why wont vehicle turn over

Is the anti-theft light lit ? Is the starter relay good ? Do you know what a relay is ? Are the battery cables good ? I would start will the starter relay circuit's if the anti-theft light is not lit.! The starter relay along with the starter relay diode is located in the battery junction box in the engine compartment. The relay is K-22 . If you pull out the relay an look on the bottom of the relay you should see four sets of numbers 30,87 an 85 ,86 . If you take a jumper wire (12-14 gage ) an jump pins 30 an 87 if the battery cables & connections are good the starter will crank . Pin's 85 &86 are the control side of the relay . One of these comes from the ignition switch when is start position an the other goes through the transmission range sensor (park neutral switch) To ground or the PCM if yours has a V-8 . Now if when you jump pins 30 & 87 an nothing happens you have bad connections or the battery cable is bad . You can go on youtube an check out videos on voltage drop testing the starter circuit .

May 25, 2016 | 2000 Ford Contour

1 Answer

My starter works but when i turn the key it does not turn over. i replaced ignition switch and tumbler on steering wheel and still nothing

Did you check the starter motor relay ? Do you know what a relay is ? The starter relay is in the power distribution center , under hood fuse / relay box . Find the relay an pull it out of box. look on the bottom of the relay , you will see numbers . 85 an 86 this is the control side of the relay . B+ on 86 . 85 is from the engine computer , supply's a ground when the body control module sends a message on the CCD or PCI serial data communication network. Because when you turn that ignition key it is just an input to the BCM - body control module . Pin's 30 an 87 are on what is called the load side of the relay. If you take a piece of 10 gage wire an jump those to sockets the starter will crank . The first thing to do is to check for battery voltage at 30 an 86 sockets in the power distribution box.

If you don't know about these thing's I suggest you take it to a ASE certified repair shop. All aboard Chrysler PCI Bus

Nov 05, 2015 | 1998 Plymouth Voyager

1 Answer

I have a 1974 350 se merc, fuel pump has no power to it, at the fusebox there are 4 relays, 3 are 5 pin relays and 1 is a 4 pin with the number 0 332 008 001, 1 wire 86 goes to the fuse-30 goes somewh

# 30 is always direct power from the battery and or ignition switch from the battery to the relay to power the part. #87 is to the part it is sending power to. #85 and #86 can be swapped., One is grounded. The other is power from the ignition switch or any switch. #30 and #87 are the switch in the relay. # 85 and #86 are the coil in the relay. The coil pulls the switch closed to power the part.

Jan 09, 2015 | Cars & Trucks

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Ok well I put in a brand new starter because my crank sensor keeps blowing and thinking I fixed the problem long behold I keep blowing my crank fuse when I try starting the truck I don't know wear to start

No, year make or model. But if you blow the crank fuse, it is between the starter and the ignition switch. Could be the switch, but most likely the wire. At the relay there are four pins. 30 is B+ all the time, 87 is to the starter. 85 and 86 can be switched. But one is B+ with the key in start position, the other goes to the ECM, this would be ground.. Since you're blowing the fuse, you need to find the short to ground. this would be the 85 and 86 wires.

Oct 26, 2014 | Cars & Trucks

1 Answer

My main relay makes a buzzing sound with the ignition switch in the off position

on a replay there are 2 particular connections that cause that. When you look for numbers on that relay you will find the numbers 30, 85, 86, 87 and 87a. The problem is their is power going to 85 or 86 (they are the 2 control terminals that control the relay). that should not be. basically 87a allows power to go through the relay when the system is shut OFF, Terminal 87 is the path of power that turns on whatever is connected to it. Now... 85 and 86... one of them is ground... the other power. Typically 85 is ground and 86 power. Now to better explain what is going wrong. you have a connection that feeds power to 87a. that power is powering 87 which powers 86. when power is turned on at 87... it turns on 86... that causes the relay to pick up an break the connection of power to 87a while at a fraction of a second later making the contact to 87. So... the path of power is turning the relay on and off all by itself, LOL. I know this is confusing, sorry. But I hope it helps

Mar 19, 2014 | 2002 Kia Sportage

1 Answer

98 Dodge Dakota starter problems. New starter, new battery starter relay,battery test out good. it was giving us problems last weekend and replaced the parts we thought it might be,it started...

Good Evening, As long as you have good power and ground to the starter you should be fine, however what I would suggest first is pulling the starter relay and jumping 30 and 87 and see if the starter kicks over. If it does it means your trigger wire from the relay is good (might have to have the key on for the power to be on to the one leg but i do not believe so). If that works then I would suspect a ignition switch I have seen this happen before, one way to see is if you take your test light to where the relay is and take it out and one leg either 85 or 86 is going to be your switching from the key. If neither switches either power or ground when the switch is moved to the start position I would lean towards the ignition switch. Do the first test and go from there. Let me know if you need any more help.

Oct 12, 2010 | 1998 Dodge Dakota

1 Answer

I have a 2003 1500 Chevy silverado.The starter continues to run after the key is released. I had replaced the starter, and a note with the starter stated this. The PCM controls the starter relay on input...

You need to replace the relay or the ignition switch,check for power to the relay in the crank position,[pin 85 or 86] in the plug the relay was taken out of to see if the power to the relay goes away as soon as it is in the run position.If so replace the relay,if not,replace the ignition switch[not the key switch the switch the key switch turns].

Nov 10, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab

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