Toyota Corolla (E120): Diagnosis circuit

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Circuit description
Shifting from 1st to o/d is performed in combination with on and off of the shift solenoid valve s1 and s2 controlled by ecm. If an open or short circuit occurs in either of the solenoid valves, the ecm controls the remaining normal solenoid valve to allow the vehicle to be operated smoothly ...

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 ...

Inspection procedure
Hint: hand–held tester only: narrowing down the trouble area is possible by performing ”a/f control” active test (heated oxygen sensor or other trouble areas can be distinguished). Perform active test using hand–held tester (a/f control). Hint: ”a/f control” is the active te ...