C 2500 Truck 2WD V8-305 5.0L VIN M SFI (1997)
Speedometer Head: Description and Operation
General Description
The electric speedometer drive replaces the mechanical drive for all C/K applications. Integrated circuits control the air core speedometer and stepper
motor odometer. The speedometer and odometer receive a signal from the vehicle speed sensor calibrator module that is generated by the vehicle speed
sensor. For diagnostic information, refer to SECTION 8A.