Toyota RM787U, Service And Repair Manual

Page: 513 / 1976

I03209
Fully open side
Fully close side
Control plate
Control plate
(+)
(-)
(+)
(-)
4
3
2
1
4
3 2
1
- DIAGNOSTICS CRUISE CONTROL SYSTEM
DI-579
733
Author: Date:
2001 SIENNA (RM787U)
2 Check cruise control actuator operation.
PREPARATION:
(a)
Turn ignition switch OFF.
(b) Disconnect the actuator connector.
CHECK:
Connect the positive (+) lead from the battery to terminals 1 and
3 of actuator, connect the negative (-) lead to terminals 2 and
4 of actuator.
OK:
Control arm moves to fully open side
CHECK:
Connect the positive (+) lead from the battery to terminals 2 and
3 of actuator, connect the negative (-) lead to terminals 1 and
4 of actuator.
OK:
Control arm moves to fully close side
NG Replace cruise control actuator.
OK
3 Check harness and connector between cruise control ECU and cruise control ac-
tuator (See page
IN-31 ).
NG Repair or replace harness or connector.
OK
Check and replace cruise control ECU (See
page
IN-31 ).