1. Blower motor inspection
1. On-vehicle inspection
<Models with manual A/C>
1) Inspect whether air flow volume can be switched to the 4 levels between 1st and 4th when the fan speed control dial is operated.
2) Inspect for abnormal noise from the blower motor when operating the fan speed control dial.
Note
- Clean if there is any dirt or foreign material.
<Models with auto A/C>
3) Inspect whether the air flow volume can be switched to one of 7 levels between 1st and 7th when the fan speed control switch is operated.
4) Inspect for abnormal noise from the blower motor when operating the fan speed control switch.
Note
- Clean if there is any dirt or foreign material.
2. Voltage inspection
1) Measure the voltage between the blower motor connector terminal and the ground point using a DMM when the fan speed control switch or fan speed control dial is operated.
<Measurement conditions>
- The ignition switch is ON.
- The connector is connected.
- Fan speed control dial 4th position and fan speed control switch 7th position
Models with manual A/C
| Switch operation |
Terminal No. |
Voltage |
| Fan speed control dial OFF position |
1 |
0 V |
| Fan speed control dial 4th position |
12V |
|
| 2 |
0 V |
Models with auto A/C
| Switch operation |
Terminal No. |
Voltage |
| Fan speed control switch OFF position |
1 |
0 V |
| Fan speed control switch 7th position |
12V |
|
| 2 |
0 V |