Pinout Values and Diagnostic Parameters

2GR-FE ENGINE CONTROL: SFI SYSTEM: TERMINALS OF ECM





HINT
The standard voltage between each pair of the ECM 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 voltage for that pair of terminals, and displayed in the "Specified Condition" column.

The illustration above can be used as a reference to identify the ECM terminal locations.





















*: The ECM terminal voltage is constant regardless of the output voltage from the sensor.

1. WAVEFORM 1





Engine Speed Signal





HINT
The wavelength becomes shorter as the engine speed increases.

2. WAVEFORM 2





Vehicle Speed Signal





HINT
The wavelength becomes shorter as the vehicle speed increases.

3. WAVEFORM 3





No. 1 (to No. 6) Fuel Injector Assembly Signal





HINT
The wavelength becomes shorter as the engine speed increases.

4. WAVEFORM 4





Camshaft Timing Oil Control Valve Assembly (for Intake Camshaft) Operation Signal





5. WAVEFORM 5





Camshaft Timing Oil Control Valve Assembly (for Exhaust Camshaft) Operation Signal





6. WAVEFORM 6





Crankshaft Position Sensor Signal and VVT Sensor (for Intake Camshaft) Signal





HINT
The wavelength becomes shorter as the engine speed increases.

7. WAVEFORM 7





Crankshaft Position Sensor Signal and VVT Sensor (for Exhaust Camshaft) Signal





HINT
The wavelength becomes shorter as the engine speed increases.

8. WAVEFORM 8





Crankshaft Position Sensor Signal





HINT
The wavelength becomes shorter as the engine speed increases.

9. WAVEFORM 9





Throttle Actuator Positive Terminal Signal





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

10. WAVEFORM 10





Throttle Actuator Negative Terminal Signal





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

11. WAVEFORM 11





Ignition Coil Assembly Signal (IGT and IGF Signal)





HINT
The wavelength becomes shorter as the engine speed increases.

12. WAVEFORM 12





Purge VSV Operation Signal





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

13. WAVEFORM 13





Air Fuel Ratio Sensor (Sensor 1) Heater Operation Signal





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

14. WAVEFORM 14





Heated Oxygen Sensor (Sensor 2) Signal





HINT
In the Data List, item O2S B1S2 and O2S B2S2 shows the ECM values from the heated oxygen sensor.

15. WAVEFORM 15





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 condition.

16. WAVEFORM 16





CAN Communication Signal (Reference)





HINT
The waveform varies depending on the CAN communication signal.

17. WAVEFORM 17





CAN Communication Signal (Reference)





HINT
The waveform varies depending on the CAN communication signal.