Toyota Corolla (E120): Ecm power source circuit

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Inspection procedure
1 Check operation(starter) Check that the starter operates normally and that the engine starts. 2 Input signal check See input signal check on page 05–745.  check the indicator light when shifting into except d position. Ok: the indicator light goes off when shifting ...

How to proceed with troubleshooting
Hint: troubleshooting of the wireless door lock control system is based on the premise that the power door lock system is operating normally. Therefore, before troubleshooting the wireless door lock control system, first make certain that the the power door lock system is operating ...

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 ...