Shift Solenoid E Malfunction (Shift Solenoid Valve Sl) - Toyota T100 1996 Service Manual

DI−294
DTC P0770
Drain
Line
Pressure
DTC No.
Lock−up does not occur when driving in the lock−up range
(normal driving at 80 km/h [50 mph]), or lock−up remains ON
P0770
in the lock−up OFF range
(2 trip detection logic)
INSPECTION PROCEDURE
1 Check solenoid valve SL operation.
OK
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
Shift Solenoid E Malfunction
(Shift Solenoid Valve SL)
SYSTEM DESCRIPTION
The ECM uses the signals from the Throttle position sensor,
mass air flow meter and crankshaft position sensor to monitor
the engagement condition of the lock−up clutch.
Then the ECM compares the engagement condition of the
lock−up clutch with the lock−up schedule in the ECM memory
to detect mechanical trouble of the shift solenoid valve SL,
valve body and torque converter clutch.
Q06995
DTC Detecting Condition
PREPARATION:
(a)
(b)
CHECK:
(a)
(b)
Q07640
NG
− AUTOMATIC TRANSMISSION
S Shift solenoid valve SL is stuck open or closed
S Valve body blocked up or stuck
S Lock−up clutch
Remove the oil pan.
Remove the shift solenoid valve SL.
Applying 490 kPa (5 kgf/cm
check that the solenoid valve does not leak air.
When battery voltage is supplied to the shift solenoid
valve, check that the solenoid valve opens.
Replace solenoid valve SL.
Trouble Area
2
, 71 psi) of compressed air,
DI0VR−01