Toyota ST185 Series Repair Manual page 119

7. AUTO CANCEL FUNCTION
A)
IF ANY OF THE FOLLOWING OPERATE CONDITIONS OCCURS DURING CRUISE CONTROL OPERATION. THE SET SPEED IS ERASED, CURRENT
FLOW TO SAFETY MAGNETIC CLUTCH IS STOPPED AND THE CRUISE CONTROL IS RELEASED. (MAIN SWITCH TURNS OFF).
WHEN THIS OCCURS, THE IGNITION SWITCH MUST BE TURNED OFF ONCE BEFORE THE MAIN SWITCH WILL TURN ON.
∗
OVER CURRENT TO TRANSISTER DRIVING MOTOR AND/OR SAFETY MAGNETIC CLUTCH.
∗
CURRENT TO CONTROL THE THROTTLE VALVE IN MOTOR BECOMES ALWAYS "ON".
∗
OPEN CIRCUIT IN SAFETY MAGNETIC CLUTCH.
∗
MOMENTARY INTERRUPTION OF VEHICLE SPEED SIGNAL.
∗
THE RESUME SWITCH IS ALREADY ON WHEN THE MAIN SWITCH IS TURNED ON.
∗
SHORT CIRCUIT IN CRUISE CONTROL SWITCH.
∗
MOTOR DOES NOT OPERATE DESPITE THE MOTOR DRIVE SIGNAL BEING OUTPUT.
B)
IF ANY OF THE FOLLOWING CONDITIONS OCCUR DURING CRUISE CONTROL OPERATION, THE SET SPEED IS ERASED AND THE CRUISE
CONTROL IS RELEASED. (THE POWER OF SAFETY MAGNETIC CLUTCH IS CUT OFF UNTIL THE SET SWITCH IS "ON" AGAIN.)
∗
WHEN THE VEHICLE SPEED FALLS BELOW THE MINIMUM SPEED LIMIT, APPROX. 36 KM/H (22 MPH).
∗
WHEN THE VEHICLE SPEED FALLS MORE THAN 16 KM/H (10 MPH) BELOW THE SET SPEED, E.G. ON AN UPWARD SLOPE
∗
WHEN POWER TO THE CRUISE CONTROL SYSTEM IS MOMENTARILY CUT OFF.
C) I
F ANY OF THE FOLLOWING CONDITIONS OCCURS DURING CRUISE CONTROL OPERATION, THE CRUISE CONTROL IS RELEASED. BUT IN THIS
CASE, THE SET SPEED IS NOT ERASED. IF THE VEHICLE SPEED IS MORE THAN THE MINIMUM SPEED LIMIT (APPROX. 36 KM/H 22 MPH), CRUISE
CONTROL OPERATION IS POSSIBLE USING "SET" OR "RESUME" ON THE CONTROL SWITCH.
∗
OPEN CIRCUIT FOR TERMINAL (A) 3 OF CRUISE CONTROL ECU AND TERMINAL 3 OF STOP LIGHT SWITCH.
SERVICE HINTS
C 3 CRUISE CONTROL ACTUATOR
1–3 : APPROX. 2 KW
5–4 : APPROX. 38.5 W
C14 CRUISE CONTROL SW [COMB. SW]
15–17 : CONTINUITY WITH MAIN SW ON
5–17 : APPROX. 413 W WITH CANCEL SW ON
APPROX. 68 W WITH RESUME/ACCEL SW ON
APPROX. 198 W WITH SET/COAST SW ON
C16(A), C17(B) CRUISE CONTROL ECU
(A) 1–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
(A)2, 6–GROUND : ALWAYS APPROX. 12 VOLTS
(A) 5–GROUND : CONTINUITY WITH PARKING BRAKE LEVER PULLED UP (ONE OF THE CANCEL SW) OR BRAKE LEVEL WARNING SW ON
(A) 7–GROUND : 1 PULSE EACH 40 CM (DRIVE VEHICLE SLOWLY)
: APPROX. 419 W WITH CANCEL SW ON IN CONTROL SW
(B) 8–GROUND
APPROX. 68 W WITH RES/ACC SW ON IN CONTROL SW
APPROX. 198 W WITH SET/COAST SW ON IN CONTROL SW
(A) 9–GROUND : ALWAYS CONTINUITY
.
121