My turn for the Check EV message

[alflash]

Ready mode voltage between ENCG and Chassis ground is 1.3V

!!!

between CG and SG pins of DLC3 is 0V

Thanks for info.

Exceptional IMHO. In my vehicle I would connect the ENCG contact to the chassis ground via a 12V 1÷5W lamp.
And I would check the system's behavior with such an additional connection.
As I understand it, there is a missing or poor contact with the ground somewhere.

 

[ogmm]

All these diodes all measure open in both directions but the one with the letter b measures 20 ohm in both directions. also all of them are connected to Chassis Ground(GND). I think all of them are the same and possibly serve as some kind of protection. Since the one with the letter b is connected to ENCG and is almost shorted to chassis ground, that could be the error.

Is there possible that someone with a working car, test the resistence between ENCG on D1 and chassis ground???? while the vehicle is off.

 

[ogmm]

nevermind, there are two 40 ohm resistors in paralell between CG and ENCG.

If someone can check the resistance between this two point will be highly appriciated.

 

[asavage]

On my broken RAV4:

In Ready/Park, measuring ENCG to chassis ground (below: black clip lead on drive unit mounting bolt on frame).






In Drive (brake applied) (during this test, the drive unit was in working condition, could drive the wheels/could have been driven. But it would error and stop if driven much)




This is not on a "working" vehicle; it has the same issues as yours does: sometimes it will drive, sometimes it will not.

 

[alflash]

nevermind, there are two 40 ohm resistors in paralell between CG and ENCG...

+

Ready mode voltage between ENCG and Chassis ground is 1.3V ...

->
If a voltage of 1.35V drops across a 20 Ohm resistance, then according to Ohm's law, a current of I = 1.35 : 20 ~ 0.067(A) flows through it.
Isn't this too much current for this speed and direction sensor? (IMHO. Maybe two MRE Sensors*).

In addition, we already know the output voltage of "zero" and "one" of both (A and B) encoders on a good vevicle: https://alflash.com.ua/2019/to_rav4ev/enc_data.png

* It would be useful to check the encoders signals when moving the screwdriver tip near the side surface of the sensor when it is removed from its "socket" but remains connected to the D1 connector in Ready mode ...