Gs450h Not starting error codes P0AC2, P0ADC and P0AE0

SpeedyGee · February 4, 2018

Another thought, how long has the car been stood? If it's more than a few months, the petrol in the tank may have "gone off".

shinjuki · February 4, 2018

yeah, i did push the throttle body butterfly open and close to see if its sticky.

Havent checked the maf.

fuel was sitting for over 6months i filled the car with Brand new fuel not sure just the other day so not sure maybe the lines still have old fuel?

SpeedyGee · February 5, 2018

What is the state of charge of the HV Battery?

If it's still decent, you should be able to get more cranks out of it.

If not then you need to find a way to get it charged up.

I would be tempted to get the 12v Battery connected to a jump starter pack and try again, for every three failed attempts, clear the codes of ECU, on these Toyota/Lexus hybrid systems this won't charge the HV Battery but it will help eliminate low voltage issue adding to the problem.

Does the engine sound like it is firing at all? Ie firing but firing only some cylinders or just not firing at all?

SpeedyGee · February 15, 2018

Any luck getting it sorted @shinjuki ?

shinjuki · February 17, 2018

no luck yet. Left it with the mechanic. Hv Battery was around 58% but it slowly drops if u leave the car on.

As said there is spark from the plugs its just then engine not turning over...

yeah, i did push the throttle

ColinBarber · February 18, 2018

If there are no other error codes and you have fuel then the first things to check are air induction leaks and fuel pressure, then look at the MAF, engine coolant temp, and crankshaft/camshaft position sensors. Lastly the throttle control motor and throttle position sensor. After that you are down to standard engine diagnostics - checking for spark and compression tests etc.