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DIAGNOSTICS
MULTI--MODE MANUAL TRANSMISSION SYSTEM
COROLLA Supplement (RM1129E)
DTC
P0806/29 CLUTCH POSITION SENSOR CIRCUIT
(RANGE/PERFORMANCE)
DTC
P0807/25 CLUTCH POSITION SENSOR (LOW)
DTC
P0807/27 CLUTCH POSITION SENSOR (LOW)
DTC
P0808/26 CLUTCH POSITION SENSOR (HIGH)
DTC
P0808/28 CLUTCH POSITION SENSOR (HIGH)
CIRCUIT DESCRIPTION
The clutch stroke sensor rotates the sensor arm when the clutch motor starts.
The transmission control ECU applies a maximum of 5 V to the clutch stroke sensor.
The transmission control ECU determines the strokes of the clutch motor by detecting the change in voltage
that occurs with changes in the sensor arm rotation angle.
The clutch stroke sensor utilizes the main sensor and sub sensor to correctly determine the strokes of the
clutch motor.
HINT:
S
The clutch stroke sensor consists primarily of 2 Hall ICs (main and sub), and a magnetic yoke that ro-
tates together with the rotation of the clutch motor.
S
The 2 Hall ICs convert the changes in the magnetic flux that are caused by the rotation of the clutch
motor (hence, the rotation of the magnetic yoke) into electric signals, and output them to the transmis-
sion control ECU. The transmission control ECU determines the extent of the clutch stroke from these
electric signals.
S
The main and sub circuits in the clutch stroke sensor have the same output characteristics.
05L4E--02
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E