Frequency - The sensor produces a signal that changes frequency (Hz) as the condition changes.
Pulse width modulation - The sensor produces a signal that changes the duty cycle when the condition changes. The frequency of this signal is constant.
Brake Pedal Position Sensor
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| Illustration 1 | g00334076 |
Position Sensor | |
The brake pedal position sensor is an input of the ECM. The sensor tells the ECM the position of the brake pedal. The ECM uses this information to turn on the brake lights.
The brake pedal position sensor is a PWM sensor. This sensor continuously generates a PWM signal. The duty cycle varies in proportion to the position of the brake pedal. The ECM receives the PWM signal and the ECM measures the duty cycle. This allows the ECM to determine the position of the brake pedal. The frequency of this signal is constant. The signal wire (contact "C") of the brake pedal position sensor connects to connector J2-5 of the ECM. The sensor gets operating power (+V) at connector contact "A" from the machine electrical system.
Neutralizer Pedal Position Sensor
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| Illustration 2 | g00334076 |
Position Sensor | |
The neutralizer pedal position sensor is an input of the ECM. The sensor tells the ECM the position of the neutralizer pedal. The ECM uses this information in order to determine when the transmission should be neutralized.
The neutralizer pedal position sensor is a PWM sensor. This sensor continuously generates a PWM signal. The duty cycle varies in proportion to the position of the neutralizer pedal. The ECM receives the PWM signal and the ECM measures the duty cycle. This allows the ECM to determine the position of the neutralizer pedal. The frequency of this signal is constant. The signal wire (contact "C") of the neutralizer pedal position sensor connects to connector J2-11 of the ECM. The sensor gets operating power (+V) at connector contact "A" from the machine electrical system.
Articulation Position Sensor
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| Illustration 3 | g00334076 |
Position Sensor | |
The articulation position sensor is an input to the ECM. The sensor automatically disengages the differential if articulation of the machine is detected.
The articulation position sensor is a PWM sensor. This sensor continuously generates a PWM signal. The duty cycle varies in proportion to the position of the machine. The ECM receives the PWM signal and the ECM measures the duty cycle. This allows the ECM to determine if the machine is articulating. The frequency of this signal is constant. The signal wire (connector contact "C") of the articulation position sensor connects to connector J2-18 of the ECM. The sensor is supplied operating power (+V) at connector contact "A" from the machine electrical system.
Ripper Position Sensor
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| Illustration 4 | g00334076 |
Position Sensor | |
The ripper position sensor is an input to the ECM. The sensor continuously tells the ECM the position of the ripper.
The ripper position sensor is a PWM sensor. This sensor continuously generates a PWM signal. The duty cycle varies in proportion to the angle of the ripper. The ECM receives the PWM signal and the ECM measures the duty cycle. This allows the ECM to determine the position of the ripper. The frequency of this signal is constant. The signal wire (connector contact "C") of the ripper position sensor connects to connector J2-10 of the ECM. The sensor is supplied operating power (+V) at connector contact "A" from the machine electrical system.
Engine Speed Sensor
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| Illustration 5 | g00020433 |
The engine speed sensor is an input of the ECM. This sensor allows the ECM to determine the engine speed.
The engine speed sensor is used to measure engine RPM. The speed sensor is a frequency sensor. A frequency sensor produces a signal that changes frequency (Hz) as the condition changes. This sensor generates a sine wave signal from passing gear teeth. This signal is sent to the ECM. The ECM measures the frequency of the signal. The sensor detects one pulse per gear tooth so the engine speed can be determined. The engine speed sensor connects to connector J2-35 and J2-24 of the ECM.
Transmission Speed Sensor
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| Illustration 6 | g00483662 |
The transmission speed sensor is an input of the ECM. This sensor allows the ECM to determine the transmission speed. The ECM uses this information to make shifting decisions.
The transmission speed sensor measures RPM of the transmission output. The speed sensor is a frequency sensor. A frequency sensor produces a signal that changes frequency (Hz) as the condition changes. This sensor generates a sine wave signal from passing gear teeth. This signal is sent to the ECM. The ECM measures the frequency of the signal. The sensor detects one pulse per gear tooth so the transmission output speed can be determined. The transmission speed sensor connects to connector J2-23 and J2-29 of the ECM.
Torque Converter Output Speed Sensor
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| Illustration 7 | g00483664 |
The torque converter output speed sensor is an input of the ECM. The sensor tells the ECM the speed of the torque converter output.
The torque converter output speed sensor is used to measure the RPM of the torque converter. The speed sensor is a frequency sensor. A frequency sensor produces a signal that changes frequency (Hz) as the condition changes. This sensor generates a sine wave signal from passing gear teeth. This signal is sent to the ECM. The ECM measures the frequency of the signal. The sensor detects one pulse per gear tooth so the speed of the torque converter can be determined. The torque converter speed sensor connects to connector J2-14 and J2-20 of the ECM.