Security light on and car wont start

[maisonvi]

Ok, so this morning went to start my car. Key in normally but didn’t want to start it because I wanted to flash a new tune on it. Connect the AP and then go to the tune screen. AP says it cant connect.

Try and start the car and no go. Have the flashing key security light thing. (see attached shitty picture for reference). Not sure if it was on when I first put the key in as I didn’t look at the dash. Spent 45 minutes trying to get it to start before I had to drive the wife to work so I could use her car.

Things I have done:

Unhooked the battery multiple times (once for at least 15 min, and with my foot on the brake for a bit to try and drain the system)
Tried my spare key (A side note, this is a copy of the other key I have. When I bought the car it only came with one and I had a copy made)
Unhooked the ECU
Checked the connections at the ECU. Everything here seems fine no broken wires that I could see.
Unhooked all things plugged into the OBD2 (wanted to make sure Aeroforce gauge or AP wasn’t causing issues)
Heated up the garage. It was 2 degrees out this morning and I know cold can do stupid things to cars. Got the garage to at least 45-50 degrees.

That’s what Ive done, and none of them have worked. Anyone have any suggestions? Ive made no changes to the car recently. Tonight I plan to start checking over the wiring harness to see if something is broken somewhere, but other than that I have no idea on what to do.

I read though the shop manual a bit at work here at there are a lot of possible things, most of them are a bad key. But trying both keys and no luck leads me to believe something else. AP cant connect to read the any DTC so Im not sure what to do to check that. Will an autozone one read the codes?

[kritz]

Start a small fire under the motor?

Car won't Start

[Easter Bunny]

Drag it to the dealer. The car thinks its stolen.

[jm211]

Steering wheel locked? Try inserting key and turning the wheel back and forth when key has the acc on.

Mine does that sometimes. Key light with key in the car flashes like a bat out of hell. Steering wheel is locked and i jiggle it as i try to turn key to on and it eventually lets go. Only happens when i turn the wheel when car is off and the wheel locks in place.

[maisonvi]

Originally Posted by jm211 Steering wheel locked? Try inserting key and turning the wheel back and forth when key has the acc on. Mine does that sometimes. Key light with key in the car flashes like a bat out of hell. Steering wheel is locked and i jiggle it as i try to turn key to on and it eventually lets go. Only happens when i turn the wheel when car is off and the wheel locks in place.

Thanks, I will try that when I get home.

[Funkster777]

I have the reset code stuff from the dealer but it's in the Speed (not where I'm at). I'll see if I can find that online to get the key to work. Maybe a low battery in the key.

[HawkeyeGeoff]

Originally Posted by maisonvi Thanks, I will try that when I get home.

Yeh shake that mother f'er!

[maisonvi]

Well no luck thus far. The garage is up to 60 degrees, so its not the cold.

Also tried connecting my bluetooth OBD2 adapter and torque app to see if I could read the code, app says I cant connect to the ecu with that either.

Any one know if there is a way to bypass the security key sensor. A guy at my work said he had a similar issue, and he ended up putting a few resistors in line with a specific wire and the system was bypassed. Cant find anything too similar on the forum here.

[mzr0818]

It's probably a problem with the code ring. It is what reads the chip inside the key. If neither key works then the ring is not receiving. Try banging on the cyl area while the key is turned full over maybe you could get it to clip on for a sec to start the car. if tow it in.

[cthomp]

Check all of your fuses... if it was a bad key/immobizer you would be able to communicate with your accessport/pcm but still not start or crank.

[maisonvi]

Originally Posted by mzr0818 It's probably a problem with the code ring. It is what reads the chip inside the key. If neither key works then the ring is not receiving. Try banging on the cyl area while the key is turned full over maybe you could get it to clip on for a sec to start the car. if tow it in.

Banging on where? Im willing to try anything at this point.

Towing is not a great option. Im heavily modded, and the nearest dealer is over an hour away.

[HawkeyeGeoff]

Originally Posted by maisonvi Banging on where? Im willing to try anything at this point. Towing is not a great option. Im heavily modded, and the nearest dealer is over an hour away.

I have a hundred miles of towing haha


Sent while granny shiftin' and not double clutching like I should

[mzr0818]

Originally Posted by maisonvi Banging on where? Im willing to try anything at this point. Towing is not a great option. Im heavily modded, and the nearest dealer is over an hour away.

calling

[HawkeyeGeoff]

Originally Posted by mzr0818 calling

Got ze digits?


Sent while granny shiftin' and not double clutching like I should

[mzr0818]

Originally Posted by HawkeyeGeoff Got ze digits? Sent while granny shiftin' and not double clutching like I should

yeah man. I have all you guys lol

[cthomp]

If I remember correctly there are a few fuses labeled eng. bar 1, 2, 3 in the engine compartment fuse box. Had a similar problem on a customer car before good luck.

[spdtrux]

GREMLINS!

Seriously.

My car does this random nothingness(power to everything but won't even crank over) from time to time normally 3-7 key cycles/100miles into a flash.

I've had to pop start it to drive home a few times, always pop starts.

GLW it. My gremlins come and go as they please.

[Playaj]

Originally Posted by spdtrux GREMLINS! Seriously. My car does this random nothingness(power to everything but won't even crank over) from time to time normally 3-7 key cycles/100miles into a flash. I've had to pop start it to drive home a few times, always pop starts. GLW it. My gremlins come and go as they please.

I've been having this issue lately and also been pop starting it. I always park on hills now lol. I'm sure mine is battery tho and gonna replace it tomorrow

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[blackms3_71]

Originally Posted by Playaj I've been having this issue lately and also been pop starting it. I always park on hills now lol. I'm sure mine is battery tho and gonna replace it tomorrow Sent from my SAMSUNG-SGH-I337 using Tapatalk

Check the wire that runs from the main harness to the starter. I have been having problems with that wire since i installed my 3 bar map. Sometimes the car wont start and i have to giggle the wire to get the car to start. I though i had fixed it by disconnecting the wire of the starter and cleaning it. But the problem is back 4 months later.

[maisonvi]

Well I pulled almost all the fuses in my engine bay fuse box, they all check out fine on my multimeter.

I was scrolling though the shop manual and found a page that shows what the codes are with the flashing of the security light. the code I got was 1+5 flashes, so #15 . Looks like the instrument cluster forgot my keys codes, or the cluster has failed.

Still looking at other options, but its getting wicked cold, so Im gonna call it a night.

[maisonvi]

Well I'm out of ideas, tried everything everyone has suggested. (Thanks Jeff!) But no luck, I'm out of ideas. Tried calling the Mazda dealer but one service department was closed the other was busy and told me to leave a message. They have not called back.

So unless I figure out something else, its going to the dealer at some point with no idea what's wrong (can't wait to see this bill)

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[Funkster777]

Sorry nothing works. I'll keep thinking about it.

[theurgy]

My guess, your passenger junction box needs programming.

[maisonvi]

Originally Posted by theurgy My guess, your passenger junction box needs programming.

Which means to the dealer is goes I assume.

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[nortigid]

Same thing happened to me when my steering wheel was locked. I had to wrench on it uncomfortably hard, and it broke free. All was good after that.

[maisonvi]

Originally Posted by nortigid Same thing happened to me when my steering wheel was locked. I had to wrench on it uncomfortably hard, and it broke free. All was good after that.

Steering wheel isn't locked at all.

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[nortigid]

No click from the starter at all, right? I wont believe the key code has been lost. That shit is beyond rare. Does the key turn at all?

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[maisonvi]

Originally Posted by nortigid No click from the starter at all, right? I wont believe the key code has been lost. That shit is beyond rare. Does the key turn at all? Sent from my ADR6400L using Tapatalk 4

No clicks at all. The starter gets no power, so I don't think anything is being sent. I tested both the starter and main relays and they both are working.

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[nortigid]

did you put a multimeter to the starter while it's connected? or did you remove the starter/relays and test them in a different environment? security/immobilizer should lock the column and the ignition. i assume you've eliminated the battery as a possibility.

edit: sorry, my reading comprehension is low because i'm at work. don't know if this stuff has been mentioned already. AINT ABOUT TO START READIN NOW

[maisonvi]

Originally Posted by nortigid did you put a multimeter to the starter while it's connected? or did you remove the starter/relays and test them in a different environment? security/immobilizer should lock the column and the ignition. i assume you've eliminated the battery as a possibility.

Yep checked them all.

Relay checked with a spare battery (that I checked to be good) plus the one in the car is an optima red top less than 3 months old.

The starter is seeing no voltage when I attempt to start it based on the same multimeter.


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[nortigid]

My ideas, in no particular order: ignition switch, faulty wiring (assuming no current at wires preceeding terminals), extremely dead battery (unlikely, due to no engagement gear clicking). The solenoid gets 0 voltage?

[blackms3_71]

by any chance did it start to flash it then it stopped?

[maisonvi]

Originally Posted by blackms3_71 by any chance did it start to flash it then it stopped?

It flashes for one minute then changes to a pattern of 1+5 flashes. That means that its throwing the B1601 code

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[nortigid]

I just spoke to an alarm installer at work and he said if you are reading 0 at the solenoid paired with a security light, it's been immobilized

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[maisonvi]

Originally Posted by nortigid I just spoke to an alarm installer at work and he said if you are reading 0 at the solenoid paired with a security light, it's been immobilized Sent from my ADR6400L using Tapatalk 4

Yeah. That's kinda what I was coming up with. Any idea on if I can reset that? I duno why it would have done it.

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[nortigid]

Outside of a tow, I don't know. Sorry mayne :/

[maisonvi]

Originally Posted by nortigid Outside of a tow, I don't know. Sorry mayne :/

Thanks anyway man. The whole situation kinda sucks.

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[nortigid]

Hopefully it's something cheap and dumb. And self-correcting once you've given up hope.

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[Lex]

Had this issue several times when an ECU bricked and no longer recognized the key during a flash. The key ring energizes and reads the key, then it sends the info to the cluster which verifies against the ECU. If any of these parts (key ring in ignition, key, cluster, ECU) have an issue you won't be able to start. Did the flash start at all?

In the end ECU had to be replaced, keys reprogrammed. The dealer is the only one that can reprogram keys and that's the first step to seeing if the ECU will talk.

Any chance you have some wiring or grounds damage from parts rubbing?

[maisonvi]

Originally Posted by Lex Had this issue several times when an ECU bricked and no longer recognized the key during a flash. The key ring energizes and reads the key, then it sends the info to the cluster which verifies against the ECU. Did the flash start at all? In the end ECU had to be replaced, keys reprogrammed. The dealer is the only one that can reprogram keys and that's the first step to seeing if the ECU will talk. Any chance you have some wiring or grounds damage from parts rubbing?

God I hope its not the ecu, but I can't connect the obd so that scares me a bit. I cant imagine that's cheap.

Why would it just stop working? I can't take the intake off and see if anything under there is rubbing. I know when I re-did my battery tray a month ago or so I moved the wires around down there.


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