Toyota AVENSIS 2000 Supplement Manual page 221

DI–90
Fail safe function:
If either of the shift solenoid valve circuits develops an open or short, the Engine and ECT ECU turns the
other solenoid ON and OFF to shift to the gear positions shown in the table below. The Engine and ECT ECU
also turns the DSL solenoid valve OFF at the same time. If both solenoids are malfunction, hydraulic control
cannot be performed electronically and must be done manually.
Manual shifting as shown in the following table must be done (In the case of a short circuit, the Engine and
ECT ECU stops sending current to the short circuited solenoid).
NORMAL
Solenoid Valve
SL1 SL2 S4
ON
OFF
ON
OFF ON
OFF
OFF OFF OFF
ON
OFF OFF
S4 SOLENOID
MALFUNCTIONING
Solenoid Valve
SL1 SL2 S4
ON ON X
OFF ON
X
OFF OFF X
OFF OFF
X
SL2 AND S4 SOLENOID
MALFUNCTIONING
Solenoid Valve
SL1 SL2 S4
ON
X X
OFF
OFF
X X
OFF X
X
OFF X
X
AVENSIS/CORONA SUP (RM781E)
DIAGNOSTICS
SL1 SOLENOID MALFUNCTIONING
Driving at 3rd or O/D
Solenoid Valve
Gear
SL1 SL2 S4
ON
1st OFF
X
OFF
ON
2nd X OFF
OFF
3rd X OFF OFF
O/D X ON
OFF
SL1 AND SL2 SOLENOID
MALFUNCTIONING
Solenoid Valve
Gear
SL1 SL2 S4
1st
X OFF
X
2nd X OFF
X
3rd X X OFF
3rd X X ON
SL1, SL2 AND S4 SOLENOID
MALFUNCTIONING
Solenoid Valve
Gear
SL1 SL2
3rd X
X
3rd X
X
3rd X X
3rd
X X
– AUTOMATIC TRANSAXLE (U240E)
Driving at 1st or 2nd
Solenoid Valve
Gear
SL1 SL2
3rd X ON
3rd X ON
OFF
3rd X
ON
OFF
O/D X
ON
SL1 AND S4 SOLENOID MALFUNCTIONING
Driving at 3rd or O/D
Solenoid Valve
Gear
SL1 SL2
ON
3rd
X
OFF
ON
3rd
X
OFF
3rd X OFF
O/D X OFF
Gear
S4
X 3rd
X 3rd
X
3rd
X
3rd
SL2 SOLENOID
MALFUNCTIONING
Solenoid Valve
Gear
S4
SL1
ON
2nd
OFF
OFF
OFF 2nd
OFF
OFF
3rd OFF
ON
ON OFF
3rd
Driving at 1st or 2nd
Solenoid Valve
Gear
SL1 SL2
S4
3rd X
X
3rd X
X
OFF
X 3rd X
OFF
X 3rd X
Gear
SL2 S4
X OFF 3rd
X 3rd
OFF
3rd
X OFF
ON O/D
X
Gear
S4
ON
X 2nd
ON X 2nd
X 2nd
ON
X 2nd
ON