Darek

Possible toyota prius have same battery cell. Try ebay there are many refurb sets. Good luck. 

7 hours ago, Gabs said:

Hello mate.. I've just realised my mechanic appointment is only next Tuesday, got the days wrong!

 

Unfortunately I have no idea hows the inverter I bought, the mechanic that sold it to me said it was from a running car, but yeah my car is also running but just not really well.. I've opened it yday and it seems in pristine condition inside

 

Where's the pump located? I've noticed the car is constantly making a noise as if there's something trying to switch on ( almost like one of those boat engines that you pull the cord trigger to start)

 

And is the radiator the main one? Or do the inverter has its own? I've had to change my radiator not long ago as there was a leak, so it did stay quite dry for some periods (although I was always topping it up) , thinking now that it might well be something related to it, as you said, something might have cooked inside 

Follows shot of freeze frame

Cheers 

Hi can't find anything on that code, you can try check live data on hv control system and hv battery and see if you have anything abnormal . 

The pump is on passenger side under the bumper attached to chassis leg, if you take off bottom bumper panel you will see it and radiator, alphard got only one radiator but bottom 1/4 of that is dedicated to cool inverter is like 2 in 1. Pump on the picture is from Prius but Alphard is similar just side hose attachment are moved 180°.

4 hours ago, Gabs said:

Hello Darek

Thank you very much for taking the time and all the explanation mate

 

Can't pull the code unfortunately, but freeze frame shows P312563

Not sure if the 63 stands for the subcode?

 

I've just managed to find a second hand inverter online for 500 quid so I've decided to just try my luck on that

 

Will take it to my local mechanic tomorrow to get it changed and will post the results here.. 

 

 

 

 

Hi if you know the inverter are 100% good, that's fine. Not sure what 63 sub code means, usually is tree numbers (can you post freeze frame picture) but will be good same time check the inverter pump and radiator if is not chocked, my pump was running but radiator was blocked and that caused the problem with inverter, simply overheating and coked electronics. 

Good luck and keep posting. 

16 hours ago, Gabs said:

That's great news Darek! Thanks for the update!

Could you please let me know where did you manage to find the specific part?

 

And also, I'm always afraid of touching the inverter given all the high voltage warning, would you also give any advice on that?

 

Thank you very much indeed mate 

Hi

Two months ago I didn't know much about hybrids but after hours of  reaserch, I would say I can do it /fix them or diagnose. 

Megazip that's the website where I ordered the parts, two other pictures are from website where you can find parts number. 

The high voltage system are easy to workout, first you have to disconnected the 12v battery (negative first) take off safety plug (on the back of the passenger seat orange plug) the best put it in the pocket. Then you wait least 30min. To give the time for decharge the capacitors. When you open the inverter/converter the best double check if the power are disconnected (using multimeter and measure DC voltage) should be 0.

But before you do anything, diagnose the car with teachstream or other compatible device. 

Cheers 

HiRight there I have a we update, I manage to get teachstream from ebay and diagnose the car again, find on freeze frame :

P3125 inverter mulfunction

And subcode 472 

One of the guys had same problem with same codes, and suggested to replace current sensor for rear motor what I did (order from Japan) and problem solved.

Car drive like a dream again. 

Hi all

I had consultation with few hybrid technicians and possibly one or few hybrid batteries are bad and they have to be checked, replace if needed and all 28 hybrid batteries have to be recharged and balanced. They said it is common procedure for older hybrid generations no matter what mileage they have. I will take mine apart probably naxt weekend. Cheers 

Hi all, checked tyre pressure but no difference, checked abs sensors (same values for all wheels). Looks like warning lights come up after start to acceration or deceleration, I suspect acceleration pedal but values change on live data when press and depress the pedal, also suspect angle sensor because values stay constant 1150 on live data no change when move steering wheel. 

Managed to read fault codes and live data by autel maxidiag 808 Pro, 

- p3125 inverter mulfunction

- c1259 HV system regenerative mulfunction 

- c1310 HV system mulfunction 

Last two disappear after swith off and switch on the ignition. No codes for acceleration pedal or angle sensor. 

Car starts and drive with warning lights but with limitation to 60km/h. 

Any one know how to test the inverter? Not the one between the seats, the one under the bonnet on right side. 

Hi got similar problem, same warning lights come on +4wd. When get the car battery was completely dead, charged the battery and stationary all looks like should- car starts no warning lights hybrid system works with all the charging arrows on the screen. Just when the car reach about 10mph ,after we gearbox kick all warning lights appear. After hours spend on research got some hints:

looks like toyota are sensitive for low battery voltage and need reset of few components:

1 . power windows - done

2 .check tyres pressure 35psi front and rear - done

3 .angle sensor - will try in next few days

Manage to check fault codes by AUTEL MAXI DIAG MD808 pro

my codes:

P3125 INVERTER MALFUNCTION

C1259 HV SYSTEM REGENERATIVE MALFUNCTION

C1310 HV SYSTEM MALFUNCTION

C1253 HYDRO-BOOSTER PUMP MOTOR RELAY - that one possibly create the problem because VSC FAULT AUTOMATICALY DISABLE HV SYSTEM, but first will try reset angle sensor (angle sensor is crucial component of VSC system and on live checks when engine running angle sensor value not react on steering wheel movement)  

alphard hybrid 2.4 2004 with around 75000miles on the clock.

Any suggestions welcome. 

Look like no luck with resolving the issue, my 2004 hybrid start showing same wirning lights: 4wd,vsd,orange(!), red car with (!), management light. Car starts and drive, the theory with tyres pressure make sens and I will check them. What make me think, when car is stationary or slowly move there is only management light and red car with!(!) are on, just when get 10-15km/h rest of the worning lights appear. Will check tyre pressure tomorrow and share results. Cheers