Toyota ZZT230 series Repair Manual page 463

01-252
P0773
DTC
CIRCUIT DESCRIPTION
The shift solenoid valve SL
acting on the lock-up relay valve, which then controls operation of the lock-up clutch.
Fail
safe function:
If the ECM detects a malfunction, it turns the shift solenoid valve
or
OTCNo. (b)
Either
(a)
Solenoid res1s1ance iS
(2--tri p detection logic)
(a)
P0773
gized.
(b) resistance is 1 00 kn or more when solenoid is
Solenoid
energized .
WIRING DIAGRAM
Transaxle
Shift Solenoi d
SL
Valve
c
Shift Solenoid E Electrical Malfunction
(Shift Solenoid Valve SL)
is turned ON and OFF
DTC
Detecting Condition
Is detected lor 1 time.
8 n or lesS when solenoid is ener·
p
LG
ECM
by signals from the
Sl OFF.
•Open or short in shift solenoid valve
•Shift solenoid valve
not
•E CM
L
to control the hydraulic pressure
Trouble Area
SL circuit
SL
ECM
SL