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Brain Box/ecu Problems In Lexus GS300 - Car Talk - Nairaland

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Brain Box/ecu Problems In Lexus GS300 by UgoFly: 9:49am On Apr 25, 2022
I need help. I changed the Brain Box of my Lexus just January this year when my car just suddenly refused to start and after programming and refreshing the memory, the diagnostics revealed that it had ECU problem. Today, the same thing happened and I am told I need to change the Brain Box again. Pls who can help me with the root cause of this issue and how to solve it once and for all.
Re: Brain Box/ecu Problems In Lexus GS300 by aieromon(m): 10:42am On Apr 25, 2022
UgoFly:
I need help. I changed the Brain Box of my Lexus just January this year when my car just suddenly refused to start and after programming and refreshing the memory, the diagnostics revealed that it had ECU problem. Today, the same thing happened and I am told I need to change the Brain Box again. Pls who can help me with the root cause of this issue and how to solve it once and for all.

Poor electrical connection
Water damage
Indiscriminate battery removal
Re: Brain Box/ecu Problems In Lexus GS300 by UgoFly: 10:59am On Apr 25, 2022
aieromon:


Poor electrical connection
Water damage
Indiscriminate battery removal

I don't remove the battery at all. The car hasnt had any reckless contact with water. The electricians said all the wires and fuses are functioning properly. The thing is frustrating.
Re: Brain Box/ecu Problems In Lexus GS300 by aieromon(m): 11:08am On Apr 25, 2022
UgoFly:


I don't remove the battery at all. The car hasnt had any reckless contact with water.The electricians said all the wires and fuses are functioning properly. The thing is frustrating.

Is the ECU not located inside the engine bay?
Re: Brain Box/ecu Problems In Lexus GS300 by UgoFly: 11:58am On Apr 25, 2022
aieromon:


Is the ECU not located inside the engine bay?

No. It's under the fuse box.
Re: Brain Box/ecu Problems In Lexus GS300 by aieromon(m): 12:01pm On Apr 25, 2022
UgoFly:


No. It's under the fuse box.

Isn't the fuse box located inside the engine bay?

You can visit another auto rewire to get a second opinion.
Re: Brain Box/ecu Problems In Lexus GS300 by surrogatesng: 1:25pm On Apr 25, 2022
Fix the car and sell it
UgoFly:
I need help. I changed the Brain Box of my Lexus just January this year when my car just suddenly refused to start and after programming and refreshing the memory, the diagnostics revealed that it had ECU problem. Today, the same thing happened and I am told I need to change the Brain Box again. Pls who can help me with the root cause of this issue and how to solve it once and for all.
Re: Brain Box/ecu Problems In Lexus GS300 by erico2k2(m): 9:47pm On May 11, 2022
UgoFly:
I need help. I changed the Brain Box of my Lexus just January this year when my car just suddenly refused to start and after programming and refreshing the memory, the diagnostics revealed that it had ECU problem. Today, the same thing happened and I am told I need to change the Brain Box again. Pls who can help me with the root cause of this issue and how to solve it once and for all.
Your problem started when you changed the Brain box
Re: Brain Box/ecu Problems In Lexus GS300 by UgoFly: 9:34pm On May 20, 2022
erico2k2:

Your problem started when you changed the Brain box

What should I have done?
Re: Brain Box/ecu Problems In Lexus GS300 by erico2k2(m): 9:43pm On May 20, 2022
UgoFly:


What should I have done?
well taken ur car to a qualified Auto Mechanic for proper diagnostics, one who can get a virgin brianbox and reprogram it

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