2003Nissan Altima 2.5s.... while driving at highway speed...


2003Nissan Altima 2.5s.... while driving at highway speed {60} the car lost all power and died and all dash lights went off. A second or two later all the lights on the dash and headlights as well as radio came back on. I tried to...

2003Nissan Altima 2.5s.... while driving at highway speed {60} the car lost all power and died and all dash lights went off. A second or two later all the lights on the dash and headlights as well as radio came back on. I tried to put it in neutral and restart it while it was coasting but the starter wont engage to try and start motor. I have checked all fuses and fusible links, all good. I recently replaced head gasket and it had been running just fine. I put it on a code reader and got multiple codes. U1000, U1001, P0183, P1454, P1612, P1124, P0507 I`m lost as to what it could be and I dont have the money to take it to a shop to get it fixed. I only have the 1 car and need it to get back and forth to work. Mechanic's Assistant: Is the power loss consistent, or does it fluctuate? When it died it hasnt restarted again Mechanic's Assistant: Are you fixing your Altima yourself? What have you tried so far? I have checked all fuses and grounds, also put it on a OBDII code reader

Automotive Expert
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Shawn
Automotive Expert
Hello Shawn, Nice to meet you!

Nice to meet you as well. I hope you can help me with my problem
Automotive Expert
I am sorry to hear about your issue with your Altima. I see the codes you listed, and there are two codes you will need to address as a first priority for your issue and I will explain what those are for you...

Ok
Automotive Expert
So the two primary codes are the U1000 & U1001. When you get these codes, they are known as communication codes. When you have a Major Control unit failure or communication issue, you get these codes. You have to ignore all other codes until you correct the communication issue. So this may require an advanced level scanner to what they call a CAN communication test. This will do a system call to all control modules to see which ones are able to communicate and which ones can not. This will provide you direction to the control unit that is causing your issue. Since you have a NATS code ( For the Key ) This could be a Ecm or Bcm failure. But of course to be verified by the communication check.

After the issue of it dying while driving, when you turn the key to start the car the starter doesn't engage and it doesn't even make any sounds like a click or anything
Automotive Expert
It could be a Transmission control module then. That can cause this. If there is no communication to the Transmission control module, it can't see the gear position. If it can't see the gear position, it won't allow the starter to engage. But either way, this will require control units to be checked.

What is the best and cheapest way to do that
Automotive Expert
I can't say this is going to be cheap. You need to use an Advanced level scanner to see what control unit failure direction you get. From there you can determine if it's worth putting money into the car to repair it. Used parts maybe a option depending on the findings.

the scanner needed is only available at a dealership?
Automotive Expert
Dealer of course, or Mobile Tech maybe. It just needs to be an advanced level scanner that can do communication checks to all control modules. So you want to ask repair shops if you want to go that route if they have the type of scanner to do that before bringing the car to them.

before this happened the only codes the car had was for O2 sensorAll the others didn't show up till it died
Automotive Expert
Yeah, when you have a communication issue, it can cause multiple codes. That is why you work on the communication issues first. Once the communication issue is resolved, it could allow all the other codes to clear out.

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