Shift Solenoid Valve: Solenoid 1, 2
The shift solenoids are 2 identical, normally open electronic exhaust work that control upshifts and downshifts in all forward gear ranges. These shift solenoids valves together in a combination of ON and OFF sequences to control the line pressure and shift mechanisms (clutches, brakes).
Solenoid 1 controls the high or low of the line pressure (flow to each clutch valve) by the operation type (ON/OFF), i.e. solenoid 1 is ON, line pressure will be low (87 -116 psi [6 - 8 bar]), solenoid 1 is OFF, line pressure will be high (232 - 261 psi [16 - 18 bar]).
Solenoid 2 controls the oil flow to clutch valve E or lock-up clutch valve by the ON/OFF signal.
The TCM monitors numerous inputs to determine the appropriate solenoid state combination and transaxle gear for the vehicle operating conditions.
| Gear | Solenoid 1 | Solenoid 2 |
|---|---|---|
| Park, Neutral | ON | ON |
| First | ON/OFF | ON |
| Second | ON/OFF | OFF |
| Third | ON/OFF | OFF |
| Fourth | ON/OFF | OFF |
| Reverse | ON/OFF | ON |
| Line Pressure | Resistance | |
|---|---|---|
| Solenoid valve 1/Solenoid valve 2 | ON (low) 89.9 - 98.6 psi (6.2 - 6.8 bar) OFF (high) 221.9 - 253.24 psi (15.3 - 17.46 bar) |
26.5 ± 0.5 Ω |