Inspection Using an Oscilloscope

Fig 1: Power Window Main Switch Waveform

Courtesy of MACK TRUCKS, INC.

• Power window main switch: 2D, 2F (+) ↔ ground (-)
• Power window motor: B, C (+) ↔ ground (-)
• Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range