RAM 2500 Truck 2WD L6-359 5.9L DSL Turbo VIN D FI (1997)
Vehicle Speed Sensor: Description and Operation
Circuit Operation
CIRCUIT OPERATION
Circuit K7 supplies 5 Volts from the Powertrain Control Module (PCM) to the vehicle speed sensor. The K7 circuit connects to cavity B31 of the
PCM connector.
Circuit G7 from the vehicle speed sensor provides an input signal to the PCM. The G7 circuit connects to cavity B27 of the PCM.
The PCM provides a ground for the vehicle speed sensor signal (circuit G7) through circuit K4. Circuit K4 connects to cavity A4 of the PCM.
HELPFUL INFORMATION
Circuit K7 also supplies 5 Volts to the vehicle speed sensor.
Circuit K4 also provides ground for the signals from the following:
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Heated oxygen sensors
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Crankshaft position sensor
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Camshaft position sensor
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Engine coolant temperature sensor
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Intake air temperature sensor
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Throttle position sensor
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Manifold absolute pressure sensor
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Vehicle speed sensor
