Toyota Celica 2005 Repair Manual page 1259

DI−1058
DTC
CIRCUIT DESCRIPTION
The signal from the vehicle speed sensor circuit is sent to the cruise control ECU as a vehicle speed signal.
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 installation).
ECU calculates the vehicle speed from this pulse frequency.
DTC No.
Speed signal is not input to the cruise control ECU while cruise
21
control is set.
2005 CELICA (RM1131U)
DIAGNOSTICS
21 Open in Vehicle Speed Sensor Circuit
4 pulses/
1 rotation
of rotor shaft
Vehicle Speed Sensor
ECU
Detection Item
− CRUISE CONTROL SYSTEM (1ZZ−FE)
4 pulses/
1 rotation
of rotor shaft
Combination Meter
S Combination meter
S Harness or connector between cruise control ECU and com-
bination meter, combination meter and vehicle speed sensor
S Vehicle speed sensor
S Cruise control ECU
1258
Cruise Control ECU
Trouble Area
DI08P−41
I00292