3.
Select the control switch to raise the voltage until high speed.
Turn the ignition switch ON.
Manually operate the control switch and measure the voltage of the blower motor.
Select the control switch to raise the voltage until high speed.
Segment | Manual Blower Voltage (V) | |
A/C ON | A/C OFF | |
1 | 3.8 | 3.4 |
2 | 4.5 | 4.5 |
3 | 5.8 | 5.8 |
4 | 7.0 | 7.0 |
5 | 8.6 | 8.6 |
6 | 9.8 | 9.8 |
7 | 11.3 | 11.3 |
8 | Battery (+) | |
If the measured voltage is not within specification, substitute with a known-good field effect transistor and check for proper operation.
Replace the field effect transistor if it is proved that there is a problem with it.
