INSPECTION
1.

Ignition "ON"

2.

Manually operate the control switch and measure the voltage of blower motor between pin 1 and 2.

3.

Select the control switch to raise voltage until high speed.

[Specification]

Fan

Motor voltage

Motor Voltage

Manual

Auto

First speed

3.80±0.5

3.8±0.5

Second speed

4.29±0.5

4.9±0.5

Third speed

4.77±0.5

6.1±0.5

Forth speed

5.29±0.5

7.2±0.5

Fifth speed

5.74±0.5

8.3±0.5

Sixth speed

6.23±0.5

9.5±0.5

Seventh speed

6.71±0.5

10.6±0.5

Eighth speed

7.20±0.5

Battery (+)

Ninth speed

7.69±0.5

Tenth speed

8.17±0.5

Eleventh speed

8.66±0.5

Twelf speed

9.14±0.5

Thirteen speed

9.63±0.5

Fourteen speed

10.11±0.5

Fifteen speed

10.60±0.5

Sixteenth speed

Battery (+)

AUTO COOLING: Auto speed (4.5V~B+)

AUTO HEATING: Auto speed (4.6V~10.6V)

4.

If the measured voltage is not specification, substitute with a known-good power mosfet and check for proper operation.

5.

If the problem is corrected, replace the power mosfet.

REPLACEMENT
1.

Disconnect the negative (-) battery terminal.

2.

Disconnect the power mosfet connector at the connecting part between heater and blower unit.

3.

Remove the power mosfet (B) after loosening the mounting screws.

4.

Installation is the reverse order of removal.

Яндекс.Метрика