Unplugged ECU with battery hooked up seems Bricked - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

solidsnake11 · 09-22-2019, 01:12 PM

I was being lazy and did not unhook battery. Then unplugged ecu and reconnected it. It will not start or respond to tactrix or elm. I have the 2017 limited cluster and it says engine coolant high tempature. This is a 2013 brz smart entry. Anybody have any advice? I have already ordered two used ecus.

Jaden · 09-22-2019, 05:08 PM

Quote:

Originally Posted by solidsnake11

I was being lazy and did not unhook battery. Then unplugged ecu and reconnected it. It will not start or respond to tactrix or elm. I have the 2017 limited cluster and it says engine coolant high tempature. This is a 2013 brz smart entry. Anybody have any advice? I have already ordered two used ecus.

Not exactly the same but I had a problem with laptop dying during a write and mine seemed bricked. What I had to do was disconnect the battery and press the break to fully discharge everything and then reconnect the battery and I was able to connect to and rewrite it.

I would try disconnecting the battery with the ECU plugged in and pressing the brake for 30-60 seconds and then reconnect the battery and try to connect with tactrix then and see if that works for you.

Jaden

steve99 · 09-22-2019, 07:04 PM

As above with everything plugged in remove battery , press brake, try tactrix again after reconnecting.

Stil no go diconnect battery for 30 minutes try again.

Id be quite supprised if ecu is damaged unless you shorted something. Ix say either ghe ecu or other modules in car are in a strange state when they lost contact with ecu

solidsnake11 · 09-22-2019, 07:14 PM

Thanks guys, I wish we had an open source recovery. I would give a donation for that. One more question do I wait in till the bell gets through dinging before I hit program.

steve99 · 09-22-2019, 07:16 PM

Quote:

Originally Posted by solidsnake11

Thanks guys, I wish we had an open source recovery. I would give some moneys for that. One more question do I wait in till the bell gets through dinging.

Tactrix you always need to turn ignition on full, not accessory, engine stopped. Then wait 15 seconds, before trying read or write

steve99 · 09-22-2019, 07:17 PM

Did you write to ecu just prior to unplugging ecu ??

steve99 · 09-22-2019, 07:19 PM

Make sure all 4 ecu plugs are pushed in all the way till the clip clicks

solidsnake11 · 09-22-2019, 07:21 PM

Quote:

Originally Posted by steve99

Did you write to ecu just prior to unplugging ecu ??

No just unplugged it.

solidsnake11 · 09-22-2019, 07:22 PM

Quote:

Originally Posted by steve99

Make sure all 4 ecu plugs are pushed in all the way till the clip clicks

Will do.

solidsnake11 · 09-22-2019, 07:27 PM

Going to try again. Will post results later. Thanks again!

solidsnake11 · 09-22-2019, 07:49 PM

Obd2 communication failed trying oem bootloader....
Oem bootloader communication failed.
This is what I get.

steve99 · 09-22-2019, 08:01 PM

Quote:

Originally Posted by solidsnake11

Obd2 communication failed trying oem bootloader....
Oem bootloader communication failed.
This is what I get.

Does it read vin number and calid ??

Have you ever flashed this ecu before with tactrix ?

Os battery volts near 12v

solidsnake11 · 09-22-2019, 08:09 PM

Quote:

Originally Posted by steve99

Does it read vin number and calid ??

Have you ever flashed this ecu before with tactrix ?

Os battery volts near 12v

No vin or calid.
12.3 volts
I have flashed it about 30 times or more.
Techstream doesn't communicate nor my elm.

solidsnake11 · 09-22-2019, 08:30 PM

Before it was bricked the cluster would say the same thing "engine coolant high tempature" when I was loading a rom. Now it's permanent anytime the key is on.

09-22-2019, 01:12 PM	#1
solidsnake11 Senior Member Join Date: Nov 2018 Drives: brz Location: nc Posts: 318 Thanks: 431 Thanked 739 Times in 443 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	Unplugged ECU with battery hooked up seems Bricked I was being lazy and did not unhook battery. Then unplugged ecu and reconnected it. It will not start or respond to tactrix or elm. I have the 2017 limited cluster and it says engine coolant high tempature. This is a 2013 brz smart entry. Anybody have any advice? I have already ordered two used ecus. Last edited by solidsnake11; 09-22-2019 at 02:33 PM.

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09-22-2019, 07:04 PM	#3
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,996 Thanks: 1,035 Thanked 4,992 Times in 2,983 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	As above with everything plugged in remove battery , press brake, try tactrix again after reconnecting. Stil no go diconnect battery for 30 minutes try again. Id be quite supprised if ecu is damaged unless you shorted something. Ix say either ghe ecu or other modules in car are in a strange state when they lost contact with ecu

09-22-2019, 07:14 PM	#4
solidsnake11 Senior Member Join Date: Nov 2018 Drives: brz Location: nc Posts: 318 Thanks: 431 Thanked 739 Times in 443 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	Thanks guys, I wish we had an open source recovery. I would give a donation for that. One more question do I wait in till the bell gets through dinging before I hit program.

09-22-2019, 07:17 PM	#6
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,996 Thanks: 1,035 Thanked 4,992 Times in 2,983 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	Did you write to ecu just prior to unplugging ecu ??

09-22-2019, 07:19 PM	#7
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,996 Thanks: 1,035 Thanked 4,992 Times in 2,983 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	Make sure all 4 ecu plugs are pushed in all the way till the clip clicks

09-22-2019, 07:27 PM	#10
solidsnake11 Senior Member Join Date: Nov 2018 Drives: brz Location: nc Posts: 318 Thanks: 431 Thanked 739 Times in 443 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	Going to try again. Will post results later. Thanks again!

09-22-2019, 07:49 PM	#11
solidsnake11 Senior Member Join Date: Nov 2018 Drives: brz Location: nc Posts: 318 Thanks: 431 Thanked 739 Times in 443 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	Obd2 communication failed trying oem bootloader.... Oem bootloader communication failed. This is what I get.

09-22-2019, 08:30 PM	#14
solidsnake11 Senior Member Join Date: Nov 2018 Drives: brz Location: nc Posts: 318 Thanks: 431 Thanked 739 Times in 443 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	Before it was bricked the cluster would say the same thing "engine coolant high tempature" when I was loading a rom. Now it's permanent anytime the key is on.

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