Toyota Corolla (E120): Power steering

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Circuit description
The shift solenoid valve sl is turned ”on” and ”off” by signals from the ecm in order to control the hydraulic pressure operation, the lock–up relay valve, which then the controls operation of the lock–up clutch. Fail safe function: if the ecm detects a malfunction, it turns the ...

Overhaul
1. Inspect 4th gear thrust clearance Using a feeler gauge, measure the 4th gear thrust clearance. 4Th gear thrust clearance: 2. Inspect 3rd gear thrust clearance Using a dial indicator, measure the 3rd gear thrust clearance. 3Rd gear thrust clearance: 3. Inspect 4th gear ...

Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system. If the malfunction indicator lamp comes on The OBD system determines that a problem exists somewhere in the emission control sy ...