Transmission shift solenoid replacement

2010 CHEVROLET COBALT
170,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
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RILEYATKINSON2
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I am replacing the two to three shift solenoid, but I need to know, from the top of the transmission to bottom, how the solenoids are numbered. I believe I know, but I want to be absolutely sure. Thanks!
Oct 9, 2018 at 7:11 AM
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ASEMASTER6371
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Good morning.

Below is the identification and attached is the solenoid arrangement.

Roy

1 - Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
2 - 1-2 Shift Solenoid (SS) Valve
3 - 2-3 Shift Solenoid (SS) Valve
4 - Vehicle Speed Sensor (VSS)
5 - Automatic Transmission Input Shaft Speed (ISS) Sensor
6 - Pressure Control (PC) Solenoid Valve
7 - Torque Converter Clutch (TCC) Pulse Width Modulation (PWM) Solenoid Valve
Image (Click to enlarge)
Attached Media
Oct 9, 2018 at 10:11 AM
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RILEYATKINSON2
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So, which one is Shift Solenoid A?
Oct 9, 2018 at 10:40 AM
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ASEMASTER6371
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The one marked 2-3 shift valve as you requested. Number 3.
Oct 9, 2018 at 1:30 PM
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RILEYATKINSON2
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It was also throwing up a code about shift solenoid A. So, which one is that?
Oct 9, 2018 at 1:32 PM
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ASEMASTER6371
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What is the code?

Please include as much information as you can.

Roy
Oct 9, 2018 at 1:34 PM
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RILEYATKINSON2
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It is code P0973- Shift Solenoid A Control Circuit Low.
Oct 9, 2018 at 1:39 PM
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ASEMASTER6371
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Possible issues attached. You will need to do electrical testing.

Roy

P0973
Descriptor
Probable Causes
1-2 Shift Solenoid
1-2 Shift Solenoid Valve Control Circuit Open or High Resistance
1-2 Shift Solenoid Valve Control Circuit Short to Ground
2-3 Shift Solenoid Valve
ECM/TRANS Fuse
Ignition 1 Voltage Circuit Open or High Resistance
Ignition 1 Voltage Circuit Short to Ground
Torque Converter Clutch Pulse Width Modulated (TCC PWM) Solenoid
Transmission Control Module (TCM)
Transmission Internal Harness Assembly
Oct 9, 2018 at 2:05 PM