Please help!! Car won't start, ECU problem?
#1
Please help!! Car won't start, ECU problem?
Hi all,
I just came to a situation that I couldn't start my RX300 suddenly. The car cranks but just didn't start up. I have tried push the pedal and hope the car will start (to see if the ICAV problem), still no luck.
And then I discovered that my CEL light, Low Battery light and transmission lights are not on when I turn the key to ON. Also, my fan near the radiator keeps running when I turn the key to ON.
So, is that a problem from ECU? Does my ECU fire up suddenly?
I just came to a situation that I couldn't start my RX300 suddenly. The car cranks but just didn't start up. I have tried push the pedal and hope the car will start (to see if the ICAV problem), still no luck.
And then I discovered that my CEL light, Low Battery light and transmission lights are not on when I turn the key to ON. Also, my fan near the radiator keeps running when I turn the key to ON.
So, is that a problem from ECU? Does my ECU fire up suddenly?
#2
Alright, here is the update.
I have tried to plug in my OBD scanner to my RX300 and it said it cannot connect to the car. So, I really suspect my ECU is not working properly. I would like to know what can I do to check the ECU is working or not? Or how can I check if the fuse has blown to the ECU? There is only one in the fuse box called EFI, is that the only fuse to the ECU?
Many thanks.
I have tried to plug in my OBD scanner to my RX300 and it said it cannot connect to the car. So, I really suspect my ECU is not working properly. I would like to know what can I do to check the ECU is working or not? Or how can I check if the fuse has blown to the ECU? There is only one in the fuse box called EFI, is that the only fuse to the ECU?
Many thanks.
#3
That really does sound like the ECU. Just for grins maybe try disconnecting the battery and see if it fixes it.
Not sure about the fuses, I'll see what I can find in the service manual.
Not sure about the fuses, I'll see what I can find in the service manual.
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