Greetings all, can anyone tell me how the high clutch is activated for the Jatco JF506E automatic transmission? I'm experiencing drive in 1st and 2nd gears but on shifting to 3rd there is a lack of drive as if neutral has been selected (other posts detail how I got here, I'm just trying to understand the transmission operation). I can see there are 9 solenoids in the valve body but from what I have been able to read I can't decipher which solenoid is involved with the high clutch. The solenoid identification I have lists them as:

Low clutch timing solenoid

Line pressure duty solenoid

Lock-up solenoid

Reduction timing solenoid

Shift solenoid A

Shift solenoid B

Shift solenoid C

2-4 Brake duty timing solenoid

2-4 Brake timing solenoid

Many thanks

 

https://www.sonnax.com/tech_resource...identification

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