TRYGO:
@ajims. If those codes are still there after replacing the sensors, there are other possibilities I'm thinking of.

* find out if your mechanic erased the codes after replacing those sensors, and enquire if he carried out a drive cycle, in order for the ECU of the car to learn a fix has being done.

########

%%% check if there's a short to ground between the wire harnesses.

%%% check for continuity on the sensors

%%% find out also if the mechanic interchanged the sensors the wrong way

%%% specifically check the fuses on the fuse box at the bonnet area. In some cars, oxygen sensors have got fuse/relays.

%%% check for power supply from battery to the sensors.

%%%trace the wiring harness that goes from the sensors to the ECU.


I hope this helps you.




Regards,

Joseph

6. HYBRID BATTERY.
This is where many hybrid car owners get discouraged buying, or even contemplate selling their hybrid cars.
This is a DC battery with a combined nominal voltage in the hundreds. Though this varies from hybrid car brands and the vehicle type.
Refer to your car's manual for more info about the nominal voltage if your car.
This is the battery, with the real potential to electrocute, that powers your car's hybrid system(inverter/converter assembly, Ac system compressor, electric motors/generators, etc).
Any slight deviation from the car's standard voltage, would have negative impacts on your car, ranging from the car not starting, etc.
This type of batteries are different from the auxiliary battery, in such that their electrodes, are embedded in a highly conductive electrolyte(potassium hydroxide), in a well sealed battery pack.
They're save, environmentally friendly, and lasts more than the 12volt battery.

THE FIX: Don't park the car for more than a week, without driving it. If you won't be around for a long while, give it to a friend to help with cruising it in your absence **""""""""**********

igbanbajo:




I confirm gazzuzz's above assertion. My RX400h was the one he worked on which threw up a code on account of use of wrong engine oil. He sold me a Mobil 1 5W-30 Full Synthetic Motor Oil, 5 qt. to cure the ailment. Ever since I changed the oil the car has been super performing. Its sound has even changed.

Disclosure - gazzuz only pulled out the code and recommended the oil which I bought from him. He refused to do ordinary oil change pleading Company Policy not to touch hybrids. He however surprised me as he allowed a complete stranger walk away with his oil after having effected a bank transfer but without him having received a confirmatory alert.

igbanbajo:


Gazzuz,
I need you to pull another code for me.
When would you want me to bring it to your workshop this week from Wednesday?