1. Blower module inspection
1) Using a DMM or oscilloscope, inspect the signal voltage between blower module connector terminal No. 2 and blower module connector terminal No. 4.
Note
- Verify that the signal voltage increases when the blower level is increased (OFF -> LO -> HI).
| Instrument set |
Measurement conditions |
| 1V/DIV, 100ms/DIV |
Fan switch OFF→LO→HI |
Standard waveform
