Valve body shift 1402770543 - 2000 Saturn SC

What are you talking about auto shift control solenoid ? Which transmission does yours have ?
Automatic Transaxle - 3T40 Automatic Transaxle - 4T40-E
1-2 Shift Solenoid Valve
In transmission valve body
Transmission Component Location
Automatic Transmission Internal Connector End Views
2-3 Shift Solenoid Valve
In transmission valve body
Is there a DTC - diagnostic trouble code stored ? Which gear or gears are not working ?

The transmission shift solenoids are located in the valve body, which is in the transmission. If you remove the transmission pan you will see the valve body. I believe any faulty shift solenoids are serviced as an entire valve body on the Avengers.

I’m happy to assist further over the phone at https://www.6ya.com/expert/nathan_cc888cf971f43e78

First off , did you check fluid level ? any lights lit on the instrument cluster, check engine ? How many miles on It ? Ever change the fluid an filter ? can you manually shift through the gears.
DEFINITION: The transmission only provides first and second gear in Drive range. The shift pattern as the vehicle accelerates from a stop is 1-2-2-1. First gear ratio is 2.921:1 and second gear ratio is 1.568:1.
Control Valve Body Assembly
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A faulty 2-3 shift solenoid valve assembly (315B) is stuck On.

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Debris is found in the control valve body (301) or the control valve body spacer plate and gasket assembly (396

the valve body is there with all the shift solenoids

YEP 4T60E HAS A THROTTLE DOWN SHIFT CABLE.YOU NEED THROTTLE CABLE TO CONTROL THROTTLE VALVE AND ALL SHIFT VALVES IN VALVE BODY.YOUR THROTTLE VALVE CABLE CONTROL TRANSMISSION LINE PRESSURE THROUGH THE VALVE BODY.WHICH CONTROLS ALL SHIFTS.

Valve body shift is this the interior area?

most likely it is a stuck shuttle valve in the valve body, remove the valve body and make sure all valve move easily in their bores, the best way to cure this is to install a new valve body with a shift kit.

Shift Solenoid B Control Circuit High

Areas to check:

• Short in shift solenoid valve No. 2 circuit
• Shift solenoid valve No. 2
• ECM

• Check the shift solenoid valve No. 2 when DTC P0976 and P0977 is output.
• Check harness and connector between ECM and shift solenoid valve No. 1 or No. 2.
  

To check the Shift Solenoid Valve No. 2:

1. Jack up the vehicle.
2. Remove the oil pan.
3. Remove the shift solenoid valve No. 1 or No. 2.
   

CHECK:

1. Measure the resistance between the solenoid connector terminal and the body ground. Standard: 11 - 15 W at 20°C (68°F)
2. Connect the battery positive lead to the solenoid connector terminal and the battery negative lead to the solenoid body ground. Standard: Solenoid operation noise is produced. If not, Replace solenoid valve. If the Solenoid operation noise is produced, Check and replace the ECM.
   

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

MOST DODGES (NOT THE MOTOR BUT THE TRANS HAS A SHIFT SOLINOID IN THE TRANS
THIS PART IS ABOVE THE VALVE BODY OF THE TRANS SO IT IS NOT EASY TO REMOVE
BUT YOU CAN DO IT WITH OUT DROP[ING THE TRANSMISSION YOU WILL IN MOST CASES HAVE TO REPLACE THE VALVE BODY GASKET
THE SOLINOID IS ABOVE THE VALVE BODY ...
YOU WILL BE ABLE TO SEE IT ONCE YOU REMOVE THE VALVE BODY REPLACE THE SOLINOID SHOULD HELP WITH YOU SHIFTING PROBLEM

I have a 1999 Ram B 1500 Van, auto transmission, 5.9 L engine.
Same problem, trans hesitates in 2-3 upshift, sometimes 1-2
to 2-3 upshift. Posts trouble code P1756 - Transmission Govenor pressure too low at below 15 to 20 Psi. Transmission pump shot or valve body leak stops trans from reaching proper pressure to shift, which is minimum 15 Psi.
Either trans is leaking in valve body, valve is stuck, shift solenoid on valve body is sticking, or pump is shot.