09 Yaris No Start

[dieselphreak]

Thanks in advance for any help. This is my mothers car, and became my problem after my step dad replaced the fuel pump in hopes of a cure. Lets start with the background. 2009 yaris, automatic, 170k. It died while driving, wouldn't start back up. Cranks just fine. I scanned it for codes with none found. I found that the fuel pump had voltage and would run during crank, but not for the initial key on. I can spray starting fluid down the intake and it will start but dies as soon as i stop spraying, with the fuel pump running the entire time, so it appears that I'm not getting any injector pulse. Any help would be MUCH appreciated ( my mom seems to want to call every hour and ask if I figured it out yet )

-Brian

[WeeYari]

CTScott is the man you need to hear from, but since he lives in the Northeast, he is probably out clearing snow.

[dieselphreak]

yeah we are supposed to get some of that tonight too. However, in oklahoma you can't believe what they say, its sunny and 65 right now, high of 23 tomorrow...

[nortonfb]

Did you pull the fuel line at the motor to make sure it's flowing?
Could be a filter.

[CTScott]

It really sounds like the engine immobilizer is not happy and therefore not allowing the injectors to be driven. If the engine immobilizer light (on the dash by the windshield) is still flashing when the key is placed into the ignition, then the ECM is preventing the injectors from firing.

[dieselphreak]

I dont believe this model has an immobilizer, no light on the dash like my camry, and no extra plastic hardware around the ignition

[CTScott]

Originally Posted by dieselphreak

I dont believe this model has an immobilizer, no light on the dash like my camry, and no extra plastic hardware around the ignition

OK. I always want to say that it was standard on 09+, but forget that it was part of certain packages.

Check the following:

20 A EFI fuse in the under hood fuse panel

At the injectors, with the ignition switch in the on position, remove the connector from injector #1 (closes to the belt) and check for 12V on the green wire.

If that is present, check the following:

If you remove the lower steering column cover (two screws behind the steering wheel, which are visible when it is rotated slightly and a third by the tilt wheel lever) you can access the ignition switch connector.

On it, check the following:

Yellow and Grey wires should have 12V with ignition off

White should have 12V with ACC on

Green and Pink should have 12V with IG in ON position

Black should have 12V while cranking the starter

[bronsin]

My 09 3 door basic hatch with auto....definitely no immobilizer!

[dieselphreak]

Originally Posted by CTScott

OK. I always want to say that it was standard on 09+, but forget that it was part of certain packages.

Check the following:

20 A EFI fuse in the under hood fuse panel

At the injectors, with the ignition switch in the on position, remove the connector from injector #1 (closes to the belt) and check for 12V on the green wire.

If that is present, check the following:

If you remove the lower steering column cover (two screws behind the steering wheel, which are visible when it is rotated slightly and a third by the tilt wheel lever) you can access the ignition switch connector.

On it, check the following:

Yellow and Grey wires should have 12V with ignition off

White should have 12V with ACC on

Green and Pink should have 12V with IG in ON position

Black should have 12V while cranking the starter

Thank you sir! I will investigate this morning and report back my findings!

[dieselphreak]

Originally Posted by CTScott

OK. I always want to say that it was standard on 09+, but forget that it was part of certain packages.

Check the following:

20 A EFI fuse in the under hood fuse panel

Voltage good, fuse good

Originally Posted by CTScott

At the injectors, with the ignition switch in the on position, remove the connector from injector #1 (closes to the belt) and check for 12V on the green wire.

12v present

Originally Posted by CTScott

If that is present, check the following:

If you remove the lower steering column cover (two screws behind the steering wheel, which are visible when it is rotated slightly and a third by the tilt wheel lever) you can access the ignition switch connector.

On it, check the following:

Yellow and Grey wires should have 12V with ignition off

White should have 12V with ACC on

Green and Pink should have 12V with IG in ON position

Black should have 12V while cranking the starter

all of the ignition wires checked out as well. Now I'm getting worried that it may be an injector driver issue in the PCM.

[CTScott]

Try one more thing - Listen closely to the injectors while trying to start it to see if you can hear them clicking away.

[dieselphreak]

Negative. No noise

[CTScott]

Originally Posted by dieselphreak

Negative. No noise

OK.

Also, check the following:

AM2 fuse (in under hood)

Put your ear against the plastic block that that fuse is mounted to and listen for the relays inside to click. When someone inside the car turns the ignition from off to on, you should hear two relays click.

[dieselphreak]

That fuse is good, I also physically removed the integrated relay block and pulled them out and can physically watch them close also found out the third relay was the horn when I didn't see it close I used a toothpick to close it lol. The bruise on the back of my head should be gone in a few days lol

[CTScott]

Originally Posted by dieselphreak

That fuse is good, I also physically removed the integrated relay block and pulled them out and can physically watch them close also found out the third relay was the horn when I didn't see it close I used a toothpick to close it lol. The bruise on the back of my head should be gone in a few days lol

I LOLed on that one. Nothing better than physical comedy.

So, it really does sound like the ECM is the issue. If you can get your hands on one from a same tranny type 07-09, you can verify that very quickly. If you grab an 09, make sure it too is a non-immobilizer one.

Since you don't have the immobilizer, there are no issues with swapping it. If you happen to have a manual transmission, I have a spare one on hand that I could program with you VIN and ship to you.

[dieselphreak]

Its an automatic..

[IllusionX]

CTScott is really not the only one to LOL at the relay tooth picking. :)

[dieselphreak]

Originally Posted by IllusionX

CTScott is really not the only one to LOL at the relay tooth picking. :)

yeah i'm 6'3" and was all hunched over that little thing, If i had a video it would be viral by now i promise that!