How to check what is causing this code .
throttle body or throttle position sensor.
Engine Start than after 2 sec. shutsoff.

Code p2118
And check hybrid battery

 

How is the ETCS fuse?

 

that fuse 10 amp is perfect that is reason why i
am so confused what is causing this fault

 

I am thinking that voltage on hybrid battery was very low and unstable voltage could be causing this error.
anyway i will first follow up your pdf file and after that rebuild hybrid battery and replace 12 v battery just in case.......than check it again.

thank you for reply and very helpful pdf file

 

if you don't have hybrid battery DTC its unlikely to the be hybrid battery.

 

There is a full service manual for a hybrid in this thread:

https://www.clublexus.com/forums/es-...-for-them.html

It includes the electrical diagrams. You may want to lookup pinout for the throttle body and check it directly with a multimeter. I can help it you need any reference from a working 300h (e.g. compare resistance of the motor).

 

yes it has hybrid dtc so i thinkk first to rebuild habrid battery cell than reeplace new 12 v battery about 1000 cca its a beast battery
than if still voltage is unstable i have to go after throtle body position sensor.

than i have to go after thotle body

first time i got stuck like this

 

Here is update,
i put new 12 v battery
new (rebuild) hybrid battery
still cant start the car.

after that did remove airfilter and snorkel from throttle body ,clean with cleaner body.
than put into ready mode not touching brake just to inspect gas pedal sensor.

observation after gas pedal is pressed no movement on butterfly on throtle body.

because i didnt connect MAF sensor and purge solenoid valve another 2 code showed up.,nothing to worry about.Big problem is why cant start engine???
After that try to isolate hybrid battery and put car into Maintenance MODE still engin just start than after 2 sec. Turning off .
Checked fuse 10 Amp for etcs and it was ok.

I didnt find BT+ signal on t. stream ,or there is there but under different name ,you can see picture and tell me which one is it.

question does gas pedal sensor should follow throtle body butterfly ??

i got stuck here realy badly.
here are some pictures if anybody know what will be next step to do.thank you.

 

Here is observation in standby position engine is not running i was pressing gas pedal and didnt notice any changes in any field .

 

I am not sure how to follow this in order to pin point issue ,why enging will not start.

This are codes that showed up when airfilter box was removed and maf sensor ,in order to get access to throttle body and just clean it up ,it wasnt dirty as i was expecting.

 

Does anyone have any idea what should be done to start engine.

 

new update ,
one thing i have noticed when we were cleaning this electronic throttle body we did push start button twice and put car in acc mode ,my helper was pressing accelerator pedal but throtlle butterfly didnt open .

so how to find out who is at fault throttle body or accelerator pedal????
q

this time lexus es 300h is giving me very hard time........

 

well, didn’t you say your Es300h was going to kill you with all the toxic gas from the battery?

It’s probably a good thing that you can finally move on from it and trade it in for another car?

 

I think this is just one more detail that es is not good lexus ,but i am thinking that i am close to fix this ,key problem was that throttle position was ON when car is not running.
i think throttle position should be OFF like on one camry hybrid we observed using t.stream software.
looks like we have to replace throttle pisition sensor ,but its all one body so it will be whole throttle body ordered.

i hope that was causing this all minor inconvenience.

 

Here is sample from other toyota hybrid and showing throttle position OFF . So looks like throttle position sensor is faulty.