D33183
1
2
6
7
W--L
M
Transmission Control ECU
CPU
MCL--
M7
C21
Clutch Actuator Assy
(Clutch Motor)
MCL+
B--Y
M7
05--288
--
DIAGNOSTICS
MULTI--MODE MANUAL TRANSMISSION SYSTEM
COROLLA Supplement (RM1129E)
DTC
P0900/21 CLUTCH ACTUATOR CIRCUIT
CIRCUIT DESCRIPTION
Detecting the signal from the shift lever position sensor or the speed sensor, the transmission control ECU
starts the clutch motor.
Refer to DTC P0885/17 on page 05 -- 282
DTC No.
DTC Detecting Condition
Trouble Area
P0900/21
The transmission control ECU detects the following condition
(a), (b) or (c).
(a) (1) Clutch motor voltage is 0.5 V or less or 14 V or more for
0.5 seconds.
(2) +BM voltage is 10 V or more.
(b) (1) Voltage is supplied to clutch motor.
(2) Clutch motor current is 5 A or more.
(3) Clutch motor current is 1 A or less.
(4) +BM voltage is 10 V or more.
(c) (1) No voltage is supplied to clutch motor.
(2) Difference of maximum and minimum voltage of clutch
motor terminal MCL+ or MCL-- is 10 V or more for 0.5 se-
conds.
S
Clutch actuator assy (Clutch motor)
S
Open or short in clutch motor circuit
S
Transmission control ECU
WIRING DIAGRAM
05L4K--02
To Alphabetical Index
To Sub Index
TOYOTA COROLLA REPAIR MANUAL SUPP 1129E