Terminals Of ECM: Notes

Fig 1: Identifying ECM Terminals

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HINT:

The standard normal voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals is also indicated.

The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the STD Voltage column.

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

Fig 2: Terminals Voltage Specifications (1 Of 3)

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Fig 3: Terminals Voltage Specifications (2 Of 3)

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Fig 4: Terminals Voltage Specifications (3 Of 3)

*¹ : The ECM terminal voltage is constant regardless of the output voltage from the sensor.

Fig 5: Fuel Injector - Waveform Graph