M45 V8-4.5L (VK45DE) (2006)
Speedometer Head: Description and Operation
SPEEDOMETER
The speedometer indicates the vehicle speed.
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ABS actuator and electric unit (control unit) converses a pulse signal from wheel sensor to vehicle speed signal, and transmit vehicle speed signal
to unified meter and A/C amp. with CAN communication.
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Unified meter and A/C amp. transmits vehicle speed signal to combination meter with communication line.
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Combination meter converses vehicle speed signal to the angle signal, and commands to speedometer.