Pinout Values and Diagnostic Parameters

2AZ-FXE ENGINE CONTROL: SFI SYSTEM: TERMINALS OF ECM





HINT
The standard normal voltage between each pair of the ECM (included in the hybrid vehicle control ECU) terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of the terminals, displayed in the "Specified Condition" column. The illustration above can be used as a reference to identify the hybrid vehicle control ECU terminal locations.













HINT
*: The ECM (included in the hybrid vehicle control ECU) terminal voltage is constant regardless of the output voltage from the sensor.

1. WAVEFORM 1





Camshaft Timing Oil Control Valve Assembly Signal





HINT
The wavelength becomes shorter as the engine speed increases.

2. WAVEFORM 2





Air Fuel Ratio Sensor (Bank 1 Sensor 1) Heater Signal





HINT
The wavelength varies in accordance with the engine operation condition.

3. WAVEFORM 3





Heated Oxygen Sensor Signal





HINT
In Data List, item O2S B1S2 shows the values input to the hybrid vehicle control ECU from the heated oxygen sensor.

4. WAVEFORM 4





Injector No. 1 (to No. 4) Injection Signal





HINT
The wavelength becomes shorter as the engine speed increases.

5. WAVEFORM 5





Knock Control Sensor Signal





HINT
* The wavelength becomes shorter as the engine speed increases.
* The waveforms and amplitudes displayed differ slightly depending on the vehicle.
6. WAVEFORM 6





Crankshaft Position Sensor and Camshaft Position Sensor Signal





HINT
The wavelength becomes shorter as the engine speed increases.

7. WAVEFORM 7





Igniter IGT Signal (from ECM (included in the hybrid vehicle control ECU) to Igniter) and Igniter IGF Signal (from Igniter to ECM (included in the hybrid vehicle control ECU))





HINT
The wavelength becomes shorter as the engine speed increases.

8. WAVEFORM 8





Purge VSV Signal





HINT
If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.

9. WAVEFORM 9





Vehicle Speed Signal





HINT
The wavelength becomes shorter as the vehicle speed increases.

10. WAVEFORM 10





Throttle Actuator Positive Terminal Signal





HINT
The duty ratio varies depending on the throttle actuator operation.

11. WAVEFORM 11





Throttle Actuator Negative Terminal Signal





HINT
The duty ratio varies depending on the throttle actuator operation.

12. WAVEFORM 12





CAN Communication Signal





HINT
The waveform varies depending on the CAN communication signal.

13. WAVEFORM 13





CAN Communication Signal





HINT
The waveform varies depending on the CAN communication signal.