Shift Solenoids

INSPECT SOLENOID





(a) Disconnect the connector from the TCCS ECU.
(b) Measure the resistance between S1, S2, SL, S4 and ground.

Resistance: 11-15 Ohms

(c) Apply battery voltage to each terminal. Check that an operation noise can be heard from the solenoid.

CHECK SOLENOID SEALS





If there is foreign material in the solenoid valve, there wil be no fluid control even with solenoid operation.

(a) Check No.1, No.2 and No.4 solenoid valves.
Check that the solenoid valves do not leak the low-pressure compressed air is applied.
When supply battery voltage to the solenoids check that the solenoid valves open.