Ath10 Toyota alphard hybrid trouble code P3125-496

[Remigijus]

Hello. I have 2007 Toyota alphard hybrid  witch one have no starting problem.  When you trying to start engine works for few seconds and cut off and not starting again. When I disconnecting all batteries and he stay for a while till he reset and it same again( Engine works for few seconds and cut off). A lot off lites on dashboard. I done diagnostic and I get code P3125.  I know it's inverter   malfunction. When I dig deeper I get sub code 496. Maybe someone know what's meen? Maybe someone have same problem? I done a lot off research and looks like everyone have different problems with same code. Maybe someone know exactly where problem can be? Water pump making noise and I think it working fine. Someone said it could be thermostat ,but how thermostat can be problem if engine is not even worming up.

Edited June 26 by Remigijus

[Rojie]

2 hours ago, Remigijus said:

Hello. I have 2007 Toyota alphard hybrid  witch one have no starting problem.  When you trying to start engine works for few seconds and cut off and not starting again. When I disconnecting all batteries and he stay for a while till he reset and it same again( Engine works for few seconds and cut off). A lot off lites on dashboard. I done diagnostic and I get code P3125.  I know it's inverter   malfunction. When I dig deeper I get sub code 496. Maybe someone know what's meen? Maybe someone have same problem? I done a lot off research and looks like everyone have different problems with same code. Maybe someone know exactly where problem can be? Water pump making noise and I think it working fine. Someone said it could be thermostat ,but how thermostat can be problem if engine is not even worming up.

 

Hello Remigijus,

 

Welcome to the Forum.

[Picasso]

Check inverter cooling pump 

[Remigijus]

Inverter colling pump is working. I saw in some video it could be currents sensors or  modules inside inverter,but still can't find what exactly this sub code means.  

[smurf]

I don't have P3125-496 on the list of diagnostic codes I have. I have found THIS, which points to the problem being more complex than the coolant pump sadly.  You'll need to use chrome to translate it from Russian.

[Remigijus]

I'm already watched Russian videos, they saying what most common problem is green module and this module is responsible for starter generator motor and they showing how to test them. I tested all modules and they are good. If is bad current sensor maybe someone know how to test them?

[Jeza]

P3125-496 is a starter generator fault, "Load short circuit due starter motor inverter abnormality" not much help really. If DTC P3125-448 is also shown then goto related diagnosis, however I can't find what this code is.

[Remigijus]

Thanks for information 👍 I will do more research on this