Toyota Corolla (E120): System description
The ecm uses the signals from the throttle position sensor, 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 or automatic transaxle (clutch, brake or gear etc.).
Monitor description
Based on the signals from the throttle position sensor, the airflow meter and the crankshaft position sensor, the ecm sends a signal to the shift solenoid valve sl to regulate the hydraulic pressure and provide smoother gearshifts. The shift–solenoid valve sl responds to commands from the ecm. The valve controls the lock–up relay valve to perform torque–converter lock–up and flexible lock–up functions.
The ecm compares the engine rpm (ne) signal and the input speed calculated by output speed sensor (output speed) and gear ratio to detect torque converter lock–up. The ecm then compares the lock–up status against the lock–up schedule in the ecm memory. If the ecm does not detect lock–up at the appropriate time, it will conclude that there is a malfunction of shift solenoid sl. The ecm will illuminate the mil.
Monitor strategy
Typical enabling condition
Typical malfunction thresholds
Other materials:
Child restraint systems
Before installing a child
restraint system in the vehicle,
there are precautions
that need to be observed,
different types of child
restraint systems, as well as
installation methods, etc.,
written in this manual.
Use a child restraint system
when riding with a small child
that cannot properly use a ...
Circuit description
The airbag sensor assy center consists of a airbag sensor assy center, safing
sensor, drive circuit, diagnosis
circuit and ignition control, etc.
It receives signals from the airbag sensor, judges whether or not the srs must
be activated, and detects
diagnosis system malfunction.
Dtc b11 ...
Replacement
1. Drain brake fluid
Notice:
wash the brake fluid off immediately if it comes into contact with any painted
surface.
2. Remove air cleaner cap sub–assy
3. Remove air cleaner case sub–assy
remove the air cleaner element, then remove the 3 bolts and air
cleaner case sub–assy.
...