Shift Solenoid Valves: Notes
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The AF23-5 uses five electromagnetic shift solenoid valves to control upshifts and downshifts in all forward gear ranges. These shift solenoid valves are controlled by the TCM and work together in a combination of ON and OFF sequences to control the various shift valves. The TCM uses numerous inputs to determine which solenoid state combination the transmission should be in. The following table shows the solenoid state combination required for each gear range.
Electronic Component Description
| Gear | Rev, 1st SS Valve (S1) | 2-3, 3-4 SS Valve (S2) | 1-2, 2-3, Rev SS Valve (S3) | 3-4, 4-5 SS Valve (S4) | Rev SS Valve (S5) |
|---|---|---|---|---|---|
| Park, Neutral | ON | OFF | ON | OFF | OFF |
| Reverse | OFF | ON | ON | OFF | ON |
| First (L) | ON | OFF | ON | OFF | ON |
| First (D), (I) | ON | OFF | ON | OFF | OFF |
| Second | OFF | ON | ON | OFF | OFF |
| Third | OFF | ON | ON | ON | OFF |
| Fourth | OFF | ON | OFF | ON | OFF |
| Fifth | OFF | OFF | OFF | ON | OFF |