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Car won't crank, won't start.


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abrusnahan
New User

Mar 22, 2017, 6:27 AM

Post #1 of 6 (380 views)
Car won't crank, won't start. Sign In

Background: 2008 Corolla S. Approximately 189,000 miles. 4 cylinder. I removed an aftermarket remote start system the day before yesterday. Started and drove fine all day. The next day, I installed an amp and subwoofer. Would not start. To be fair though, I had not driven the car all day so it may not have started before I installed the subwoofer.

When I turn the key all the way, there is no clicking. Just silence. All the electronics work (lights, windows, radio, and even the subwoofer). I did notice that when the key is turned to the 2nd position, the check engine light is not flashing or illuminated. Aren't all the indicator lights supposed to light up or flash?

I decided to try scan the car with a code reader. The code reader turned on and attempted to scan, but took forever and finally gave me a "linking error." I am assuming this has something to do with the check engine light not being illuminated. What controls those two things? The ECM?

I checked all the fuses under the dash and in the hood and they all look fine. I cleaned the connections on the battery and checked the water levels and that seems fine. Even tried jumping it and that didn't work.

I thought maybe I interefered with the security system when I removed the remote start, but that doesn't explain how I was able to drive the car the entire day after removing it. The securty light blinks when the key is not inserted. When the key is inserted it doesn't blink. I am pretty sure that is what it is supposed to do.

So I'm at a loss here. What do I do?


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Mar 22, 2017, 7:10 AM

Post #2 of 6 (365 views)
Re: Car won't crank, won't start. Sign In

You need to figure out if the ECU (engine control unit) is powered up or not. You can't communicate and the check engine light doesn't bulb check are symptoms of an inop ECU. Do you have a digital volt meter? Check a sensor 5 volt ref to see if 5 volts is sitting there with the ignition on. If no 5 volt ref, then you will be checking powers and grounds at the ECU connector.

You may want to back track and inspect everything that you have done prior to the issue.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


abrusnahan
New User

Mar 22, 2017, 7:15 AM

Post #3 of 6 (356 views)
Re: Car won't crank, won't start. Sign In

How do I know which part is 5 volts? I have a multimeter, but I'm just clueless as to where to put my contacts on the ECM.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Mar 22, 2017, 9:05 AM

Post #4 of 6 (336 views)
Re: Car won't crank, won't start. Sign In

Unplug the mass air flow sensor and check for 5 volt on the yellow/black stripe wire terminal with the ignition on. If you don't understand how to take voltage measurement with your meter, you may need to find someone or a shop that can.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


abrusnahan
New User

Mar 22, 2017, 10:56 AM

Post #5 of 6 (316 views)
Re: Car won't crank, won't start. Sign In

I got underneath the steering column and touched the white and red wires together which cause it to crank, but it still wouldn't start. I tried turning the key while doing this and it started for a split second but immediately cut off.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Mar 22, 2017, 12:23 PM

Post #6 of 6 (305 views)
Re: Car won't crank, won't start. Sign In

Do you have a picture of the wiring under there? It probably has to do with how the wiring was hacked up under there with the remote start system. How did you splice the wiring back together? Not a good idea to stick wires together unless you absolutely know what they go to and are for. Last thing you need is to short out an expensive component.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.






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