Vehicle Speed Sensor Circuit - Toyota T100 1996 Service Manual

DI−428
DTC
CIRCUIT DESCRIPTION
The vehicle speed siggnal is sent to cruise control ECU from the vehicle speed sensor.
The rotor shaft is driven by the gear of the transmission.
For each rotation of the shaft, the vehicle speed sensor sends a 4−pulse signal through the combination
meter to the cruise control ECU (See the following).
This signal is converted inside the combination meter and sent as a 4−pulse signal to the cruise control ECU.
The ECU calculates the vehicle speed from this pulse frequency.
Speed Sensor
ECT
DTC No.
S Speed signal is not input to the cruise control ECU while
21
cruise control is set.
WIRING DIAGRAM
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
21

Vehicle Speed Sensor Circuit

4 pulse/
1 rotation
of rotor shaft
Detection Item
− CRUISE CONTROL SYSTEM
4 pulse/
1 rotation
of rotor shaft
OD/TRIP METER
S Vehicle speed sensor
S Wire harness
S Cruise control ECU
Cruise Control ECU
Trouble Area
DI353−02
I00414
I22673