Toyota ZZT230 series, Repair Manual

Page: 709 / 821

Dl-498
DTC 1 2, 43
CIRCUIT DESCRIPTION
-
Actuator Magnetic Clutch Circuit
This circuit turns on the magnetic clutch inside the actuator during cruise control operation according to the
signal from the
ECU.
If a malfunction occurs in the actuator or speed sensor, etc. during cruise control operaR
tion, the rotor shaft between the motor and control plate is released.
When the
brake
pedal
is
depressed, the stop light switch turns on, supplying electrical power to the stop light.
Power supply to the magnetic clutch Is mechanically cut and the magnetic clutch is turned OFF.
When driving downhill, H the vehicle speed exceeds the set speed by 1 5 km/h (9 mph), the ECU turns the
safety magnet clutch
OFF.
If the vehicle speed later drops to within 1 0 kmth (6 mph), cruise control at the
set speed Is resumed
.
DTCNo.
Trouble Area
•STOP
Fuse
•Stop
light
SWitch
Short
In
actuator
magnetic
clutch circuit.
• Actuator
magnetic clutch
12
Open (0.8 sec.)
io actuator
lfiBgfleti<: cl\ltd'l
ciraJit
•Harness or con
�'lector
between cruiS& control
ECU
and actua-
lor magnetic
clutch, actual()( magnetic clutch and
body
ground
•
CruiSe
control ECU