Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Electronic controlled automatic transaxle / Shift solenoid ”a” performance
(shift solenoid valve s1)
Toyota Corolla (E120): Shift solenoid ”a” performance (shift solenoid valve s1)
Dtc p0751 shift solenoid ”a” performance (shift solenoid valve s1)
System description
The ecm uses signals from the vehicle speed sensor and crankshaft position sensor to detect the actual gear position (1st, 2nd, 3rd or o/d gear).
Then the ecm compares the actual gear with the shift schedule in the ecm memory to detect the mechanical trouble of the shift solenoid valves, the valve body or automatic transaxle (clutch, brake or gear etc.).
Monitor description
The ecm commands gear shifts by turning the shift solenoid valves ”on/off”. According to the input shaft revolution, intermediate (counter) shaft revolution and output shaft revolution, the ecm detects the actual gear position (1st, 2nd, 3rd or o/d gear position). When the gear position commanded by the ecm and the actual gear position are not same, the ecm illuminates the mil.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Other materials:
Setting the vehicle speed
1 Press the “ON-OFF” button to activate the cruise control.
Cruise control indicator will come on.
Press the button again to deactivate the cruise control.
2 Press the “ON-OFF” button to activate the cruise control.
Cruise control indicator will come on.
Press the button again to deac ...
Child restraint system
fixed with an ISOFIX lower
anchorage (for Puerto
Rico)
■ ISOFIX lower anchorages
(ISOFIX child restraint system)
Lower anchorages are provided
for the outboard rear seats.
(Marks displaying the location of
the anchorages are attached to
the seats.)
■ When installing in the rear
outboard seats
Install the child restraint system
in accordance to the ...
Circuit description
This circuit turns on the magnetic clutch inside the actuator during cruise
control operation according to the
signal from the ecu. If a malfunction occurs in the actuator or speed sensor,
etc. During cruise control operation,
the rotor shaft between the motor and control plate is released.
...