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Home >> Acura >> 2009 >> CSX Base, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System >> System Description >> Navigation Function >> Vehicle Speed Pulse
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Vehicle Speed Pulse

The vehicle speed pulse is sent by the ECM/PCM. The ECM/PCM receives a signal from the output shaft (countershaft) speed sensor, then it processes the signal and transmits it to the speedometer and other systems.

Fig 1: PCM And Audio-Navigation Unit - Communication Diagram
G06467401Courtesy of AMERICAN HONDA MOTOR CO., INC.
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