hey guys,
So, I have this clients Nissan Titan XD 5.0L Cummins. I tryed reading with HPT but it failed even before start reading.
Now truck does not start, I have no communicatio with ecm/ecu.
Any ideas on what is going on? What can I do? Can it be stuck on programing mode?
thank you
You may have voltage problems, this should not have happened in read in write if you could break the ecuOriginally Posted by raumol
It sounds like you've encountered a significant challenge with the Titan XD's ECU. When an ECU's read or write operation gets interrupted, the ECU can often become "bricked." This term essentially means that the software on the ECU becomes corrupted, which can prevent the vehicle from starting or even communicating with diagnostic tools.
Given that you've experienced a failed reading and can't communicate with the ECU, it's possible the ECU is bricked. Interruptions in the reading or writing process, such as from a power issue or software glitch, can leave the ECU in this corrupted state.
Before jumping to this conclusion, it's crucial to check some basics. Ensure the ECU is receiving the right power and that there's no issue with its grounding. A simple loose connector or a blown fuse might create the impression of a bricked ECU, so it's essential to rule these out.
It might be worth trying a different scanning tool as well. There are times when, even if one tool can't establish a connection with the ECU, another might be able to. If you can, see if another scanner can connect or if it can pull any diagnostic codes.
Some ECUs have what's called a "recovery mode." This mode can sometimes be initiated using specific tools or procedures. It's worth investigating if the Nissan Titan XD's ECU has this capability, as it might provide a way to recover the ECU.
If you're unable to establish a connection or initiate a recovery, consider trying to reflash the ECU with the factory software. If you have access to Nissan's official diagnostic software and either the original or a known-good stock file for the vehicle, this reflash might help. But, remember, it's essential to have a reliable connection and power source during this process to avoid further complications.
If you're unable to recover the ECU, you may have to consider replacing it. Keep in mind that a new ECU will probably need to be programmed to the vehicle's specific VIN and other parameters.
Also note that having any aftermarket accessories like lights, radio etc can cause read/write problems with Nissans on hptuners from my experience. Best of luck!
Did you every find a solution to this. We just had this happen the other day. Literally same exact thing. Never even got to erase or write. It just failed to authenticate a connection. And now no start.
A simple solution to this issue would be to use a J2534 Pass Through device to flash a OEM calibration to the vehicle the try to read the vehicle once again. Make sure you have adequate battery level or a proper battery charger connected to the vehicle not a battery tender but a normal shop charger for batteries digital or analog. A lot of times reads have issues due to people not disconnecting accessories connected to the vehicle or tuners leaving light and other interior systems on while trying to complete a read. Hope this helps other in the future.
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Just had this exact issue occur to me. Didn't even start a read and has bricked the ECM... Googling it seems as though this has happened to a number of people. Any solutions would be greatly appreciated. Not sure how to go about flashing in a standard calibration with a generic J2534 as I don't have a standard file on hand.
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