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:
Stopping
► Automatic transmission or continuously
variable transmission
1 With the shift lever in D, depress the brake pedal.
2 If necessary, set the parking brake.
If the vehicle is to be stopped for an extended period of time, shift the shift
lever to P or N. (, 174, 176) ► Manual ...
Making a phone call
To enter the “PHONE” mode, press the off-hook switch.
■ Making a phone call
● Dialing by selecting a name
● Speed dialing
● Dialing by entering the number
● Dialing from call histories
■ Receiving a phone call
● Answering the phone
● Refusi ...
Inspection procedure
1 Check wire harness(dlc3 – airbag sensor assy center)
Turn the ignition switch to the lock position.
disconnect the aribag sensor assy center connector.
measure the resistance according to the value(s) in the
table below.
Standard:
2 Check wire harness(cg of dl ...