Solenoid Assembly

NOTE: Solenoid assembly may also be referred to as solenoid pack.

Solenoid assembly is controlled by PCM. PCM provides voltage to transmission control relay, causing contacts to close which supplies voltage to solenoid assembly. Solenoid assembly, consisting of 4 electric solenoids, controls transaxle hydraulic circuits. PCM completes the ground circuit, operating solenoid for proper hydraulic circuit control.

Low-Reverse (L-R), Overdrive (OD) and 2-4 pressure switches are located in solenoid assembly. Pressure switches are monitored by PCM to indicate if pressure is present in a specified hydraulic circuit. Pressure switches must operate in correct status with each gear. See PRESSURE SWITCH OPERATION table. PCM uses this information to verify solenoid assembly operation and to determine what gear transaxle is in.

PRESSURE SWITCH OPERATION

Gear & Pressure Switch		Switch Status
Park
L-R		Closed
2-4		Open
OD		Open
Reverse
L-R		Open
2-4		Open
OD		Open
Neutral
L-R		Closed
2-4		Open
OD		Open
1st Gear
L-R		Closed
2-4		Open
OD		Open
2nd Gear
L-R		Open
2-4		Closed
OD		Open
3rd Gear (D)
L-R		Open
2-4		Open
OD		Closed
4th Gear (OD)
L-R		Open
2-4		Closed
OD		Closed