Toyota Corolla (E120): Terminals of ecu

1. Radio receiver assy

Problem symptoms table

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    Toyota Safety Sense 3.0
    The Toyota Safety Sense 3.0 consists of the driving assist systems and contributes to a safe and comfortable driving experience: WARNING ■Toyota Safety Sense 3.0 The Toyota Safety Sense 3.0 operates under the assumption that the driver will drive safely, and is designed to help reduce the impact t ...

    Basic inspection
    When the malfunction is not confirmed in the dtc check, troubleshooting should be carried out in all the possible circuits considered as causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location causing the problem can be found ...

    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 ...