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There are no miracles in electricity, only bad contact. It is necessary to ring every wire from the red connector to the solenoids, sensors and switches. Guided by this scheme.

@CBR consulting Is P0748 still not clearing? Are there any other error codes? If you disconnect the connector on solenoid B, will P0778 appear? After connecting solenoid B back, does the error reset?

Allows you to monitor engine and transmission parameters. everything that TECH2 reads. You can record it in a log, display it on graphs and play back and analyze it. About teaching blending, I'm not sure, I have THECH2 for that. You can try without a license with the pill. If you like it...

The ELM327 scanner costs a penny - less than $10. The ScanXL application has a "pill" for trial use. And there are a lot of free applications for Android. for bluetooth version ELM327 which allows you to read and reset errors.

Is there 5V on pin 20and 21of the red connector? Is this 5 volt reaching the temperature sensor? We measure everything when all connectors are connected and the ignition is on Did you install another TCM? Assuming that the TCM is working properly. You should try connecting with another...

Or set multimeter mode on the beeper

Turn off the ignition. measure the resistance between the body and the light blue. when all connectors are connected.

Is this when all connectors are connected?

You can take a long needle from the syringe to get to the desired contact on the TCM

Do you have the pan removed? you can measure directly on the solenoids.

Connect the connectors and measure again

You need to disassemble the TCM and take a photo of the board on both sides.

yes on Red. And check pins 1 and 5 on the gray connector.

Is there voltage on the other connector pins 22, 24, 32?

Strange, it should always be on pin 3. not 2

Is there voltage on these contacts?

And you still have error P0748?

To measure the current you need to move the red probe to contact “A”. Mode switch to position "A".

I've already moved towards you.

Ideal 61-337 will be enough.