Supra Sport Roof L6-2997cc 3.0L DOHC MFI (1998)
Throttle Valve Solenoid: Description and Operation
Linear Solenoid For Lock-Up Control Circuit
CIRCUIT DESCRIPTION
The amount of current flow to the solenoid is controlled by the
(*) duty ratio of the ECM output signal. The higher the duty ratio becomes, the higher the lock-up hydraulic pressure becomes during the lock-up
operation.
(*) Duty Ratio The duty ratio is the ratio of the period of continuity in one cycle.
For example, if A is the period of continuity in one cycle, and B is the period of non-continuity, then
* Duty ratio = A / (A + B) X 100(%)
