Toyota Corolla (E120): Inspection procedure

Hint

: read freeze frame data using the hand–held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air–fuel ratio was lean or rich, etc. At the time of the malfunction.

1 Check valve timing(check for loose and jumped tooth of timing chain)

Replace ecm

Replace ecm

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    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 de ...

    Inspection procedure
    1 Inspect cruise control actuator assy Turn the ignition switch to off.  disconnect the cruise control actuator assy connector.  measure the resistance between terminals 1 (mo) and 2 (mc) of cruise control actuator assy. Hint: if control plate position is fully opened or ...

    Circuit description
    Monitor description The ecm commands gearshift by turning the shift solenoid valves ”on/off”. When there is an open or short circuit in any shift solenoid valve circuit, the ecm detects the problem and the mil comes on. Illuminating the mil, the ecm performs the fail–safe and turns ...