Shift Control
The PCM instantly determines which gear should be selected by various signals sent from sensors and switches, and it actuates shift solenoid valves A, B, C, D, and E to control gear selection.
The PCM turns shift solenoid valves A, B, C, D, and E ON and OFF to control gear selection. All shift solenoid valves are normally closed (ON-OPEN/OFF-CLOSED). The shift solenoid valve port opens to allow ATF to pass through when the PCM turns it ON, and the port closes, blocking fluid flow when turned OFF. The combination of driving signals to shift solenoid valves A, B, C, D, and E for each gear are in the following table.
GEAR POSITION
| Position | Gear Position | Shift Solenoid Valves | ||||
|---|---|---|---|---|---|---|
| A | B | C | D | E | ||
| D, D3 | Shifting from N | OFF | ON | ON | OFF | OFF |
| Stays in 1st | ON | ON | ON | OFF | OFF | |
| Shifting gears between 1st and 2nd | OFF | ON | ON | OFF | OFF | |
| Stays in 2nd | OFF | ON | OFF | ON | OFF or ON | |
| Shifting gears between 2nd and 3rd | OFF | ON | ON | ON | OFF or ON | |
| Stays in 3rd | OFF | OFF | ON | OFF | OFF or ON | |
| D | Shifting gears between 3rd and 4th | OFF | OFF | OFF | OFF | OFF or ON |
| Stays in 4th | ON | OFF | OFF | OFF | OFF or ON | |
| Shifting gears between 4th and 5th | ON | OFF | OFF | ON | OFF or ON | |
| Stays in 5th | ON | OFF | ON | ON | OFF or ON | |
| 2 | 2nd gear | OFF | ON | OFF | ON | OFF |
| 1 | 1st gear | ON | ON | ON | OFF | OFF |
| R | Shifting from P and N | OFF | ON | OFF | OFF | ON |
| Stays in reverse | ON | ON | OFF | OFF | ON | |
| Reverse inhibit | OFF | OFF | ON | OFF | OFF | |
| P | Park | OFF | ON | OFF | OFF | ON |
| N | Neutral | OFF | ON | ON | OFF | OFF |