Toyota
Jeep Cherokee
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Fuel system » Fuel injection system » Description and operation
Sensor return-pcm input

OPERATION

The Sensor Return circuits are internal to the Powertrain Control Module (PCM).

Sensor Return provides a low-noise ground reference for all engine control system sensors. Refer to Power Grounds for more information.

    More about «Description and operation»:

    Powertrain control module (PCM)

    Modes of operation

    Automatic shutdown (asd) relay sense-pcm input

    Battery voltage-pcm input

    Brake switch-pcm input

    Five volt sensor supplies-primary and secondary

    Fuel level sensor-pcm input

    Engine coolant temperature sensor-pcm input

    Extended idle switch-pcm input

    Oxygen sensor-pcm input

    Ignition circuit sense-pcm input

    Intake manifold air temperature sensor-pcm input

    Manifold absolute pressure (map) sensor-pcm input

    Oil pressure sensor-pcm input

    Power grounds

    Power steering pressure switch- pcm input

    Sensor return-pcm input

    Throttle position sensor (tps)-pcm input

    Vehicle speed and distance sensor- pcm input

    Auto shutdown (asd) relay-pcm output

    CCD bus (+/-) circuits-pcm outputs

    Data link connector-pcm input and output

    Fuel injectors-pcm output

    Fuel pump relay-pcm output

    Idle air control (iac) motor-pcm output

    Radiator fan relay-pcm output

    Throttle body

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