Pinout Values and Diagnostic Parameters

INSPECT ECM (2TR-FE)
a. Connect the connector to the ECM and inspect the wire harness side connector from the back side, as shown in the table.




WAVEFORM 1:




Engine Coolant Temperature Sensor Signal




A Changes in accordance with the engine coolant temperature




WAVEFORM 2:




Engine Speed Signal

HINT: The wavelength becomes shorter as the engine rpm increases.




INSPECT ECM (1GR-FE)
a. Connect the connector to the ECM and inspect the wire harness side connector from the back side, as shown in the table.




WAVEFORM 1:




Engine Coolant Temperature Sensor Signal




A Changes in accordance with the engine coolant temperature




WAVEFORM 2:




Engine Speed Signal

HINT: The wavelength becomes shorter as the engine rpm increases.