Odometer: Description and Operation

Speedometer and Odometer

The speedometer and odometer (part of the LCD Display) are controlled by the CPU in the gauge assembly. The CPU receives a pulsing input from the vehicle speed sensor. The pulse rate increases as the car accelerates. The frequency and duration of these input pulses are measured by the CPU. The CPU controls the LCD Display to turn on the correct number of segments to indicate the vehicles speed and mileage.

Refer to the Gauges System for specific tests or troubleshooting procedures.