Operation CHARM: Car repair manuals for everyone.

Component Tests and General Diagnostics

SPEEDOMETER SENSOR
Inspection of voltage




1. Remove the speedometer sensor.







2. Measure voltage between terminals of the speedometer sensor while rotating the driven gear.
3. Install the speedometer sensor.

Inspection of wave form




1. Connect the oscilloscope to the powertrain control module at terminal 1C.
2. Inspect the wave form as shown in the figure.