Actuator Magnetic Clutch Circuit - Toyota T100 1996 Service Manual

DI−422
DTC
CIRCUIT DESCRIPTION
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 opera-
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, if the vehicle speed exceeds the set speed by 15 km/h (9 mph), the ECU turns the
safety magnet clutch OFF. If the vehicle speed later drops to within 10 km/h (6 mph) above the set speed,
then cruise control at the set speed is resumed.
DTC No.
S Short in actuator magnetic clutch circuit.
12
S Open (0.8 sec.) in actuator magnetic clutch circuit.
WIRING DIAGRAM
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
12

Actuator Magnetic Clutch Circuit

Detection Item
− CRUISE CONTROL SYSTEM
S Actuator
S Stop light switch
S Wire harness
S Cruise control ECU
Trouble Area
DI351−02
I22681