Car Won't Start - Please help!

[Impureclient]

Get together smart people, like we have on this forum, and the sky's the limit as to the help they can provide.

I had an electrical problem a few days ago and it was solved practically within a couple hours with another forum members help in here. This place is such a great source for help.
Anything I could think of about this car is either in here already or just in the case of that wiring issue I had, just a post away from being solved. I think a great
deal of why it's so great a source for info is the amount of traffic that is in here. I love seeing all the new posts, even if they are problems like this one, as I soak all that stuff up in case I might need to use it later.

[humfrz]

Originally Posted by SkiRideDrive

Update. Battery has 13.5 volts from my multimeter.

Have you checked the battery voltage when the car is NOT running ... ??

It should be about 12.6 V.

With the engine running, you should be getting around your 13.5 V.

http://www.aa1car.com/library/battery_runs_down.htm


humfrz

[Tcoat]

Originally Posted by SkiRideDrive

This diagram looks quite a bit different than what I am staring at in my 2015 frs.

Ya that is wrong! Have given that out 20 times I think. Pull your manual it is in there at page 276 (went old school). Or page 35 in the BRZ manual attached since the FRS one does not seem to be available in PDF. Fuse 21

[SkiRideDrive]

Originally Posted by steve99

"-The alarm (flashing red light with lock) light flashes on dash when I am not trying to start the car. I can't remember if that light flashed did that before this whole snafu, I'd be willing to guess it did not, but can't be sure. "

Generally if the alarm/security light is flashing the alarm/security is still active and the car will not start

We dont have the alarm function in my country just the immobilizer.

if all the dash lights illuminate and headlights work ect but car wont crank and imobilier/security light still flashing then i would concentrate on some issue with security system check the imobiliser/alarm fuses plugs/connections to alarm/imobiliser ect.
also measure the battery volts under load even a dead battery can measure ok unloaded.

as well as checking fuses check the big fusible links under the bonnet.

Thanks. As soon as I put the key in the ignition... the red lock light stops flashing. I'm almost certain battery voltage is not the issue here.

Big fusible links?

[SkiRideDrive]

Originally Posted by humfrz

Have you checked the battery voltage when the car is NOT running ... ??

It should be about 12.6 V.

With the engine running, you should be getting around your 13.5 V.

http://www.aa1car.com/library/battery_runs_down.htm


humfrz

The measurement was takenough with the car not running. I can't get the car to run...wish I could.

[Tcoat]

Originally Posted by humfrz

Have you checked the battery voltage when the car is NOT running ... ??

It should be about 12.6 V.

With the engine running, you should be getting around your 13.5 V.

http://www.aa1car.com/library/battery_runs_down.htm


humfrz

Since the car won't start and he pulled the voltage ...
Edit: AHHHH he beat me to it.

[SkiRideDrive]

Originally Posted by Tcoat

Ya that is wrong! Have given that out 20 times I think. Pull your manual it is in there at page 276 (went old school). Or page 35 in the BRZ manual attached since the FRS one does not seem to be available in PDF. Fuse 21

Today I tried any fuses with efi. Ign. Etc. That document u provided suggest st and am2. I will try those tomorrow. Won't have time in morning but will def give it a whirl in the afternoon.

Thanks.

[Tcoat]

Originally Posted by Impureclient

I think a great
deal of why it's so great a source for info is the amount of traffic that is in here. I love seeing all the new posts, even if they are problems like this one, as I soak all that stuff up in case I might need to use it later.

And ironically enough one of the main reasons there is so much traffic is that this is also a highly social forum where people joke around and actually enjoy themselves. Pure tech forums can be empty wastelands or only have a handful of people. So those "totaled" or "cuddle it" jokes may not help the OP directly but they do keep people coming back and then eventually somebody can help.

[steve99]

Originally Posted by SkiRideDrive

Thanks. As soon as I put the key in the ignition... the red lock light stops flashing. I'm almost certain battery voltage is not the issue here.

Big fusible links?

yes that sounds normal key in ignition, alarm light stops flashing thats good car had read code from key transponder.

under bonnet their are more fuse box's in those their are some about 10mm square plastic blocks , they are fusible links (big fuses, just different to the tiny blade fuse.) they are generally the high capacity ones like 30 to 80 amps for starter headlights ect.

[Tcoat]

Originally Posted by SkiRideDrive

Today I tried any fuses with efi. Ign. Etc. That document u provided suggest st and am2. I will try those tomorrow. Won't have time in morning but will def give it a whirl in the afternoon.

Thanks.

Fuses 21, 30 and 45 seem to be the main ones for starting. I would start with them.

[steve99]

@SkiRideDrive

see attached brz wiring diagram

[Tcoat]

Originally Posted by Tcoat

Ya that is wrong! Have given that out 20 times I think. Pull your manual it is in there at page 276 (went old school). Or page 35 in the BRZ manual attached since the FRS one does not seem to be available in PDF. Fuse 21

Originally Posted by steve99

@SkiRideDrive

see attached brz wiring diagram

Look back 8 posts!

[steve99]

Originally Posted by Tcoat

Look back 8 posts!

@Tcoat mine is the full service manual wiring diagrams :-)

[Impureclient]

Originally Posted by Tcoat

So those "totaled" or "cuddle it" jokes may not help the OP directly but they do keep people coming back and then eventually somebody can help.

I agree, it may seem like it's not joking time but keeping the new topics fresh like that keep them up top and make them more "clickable".