POWER METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR (POWER MOS FET) INSPECTION [FULL-AUTO AIR CONDITIONER]

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1. Verify that the resistance between the terminals of the power MOS FET is as shown in the table.

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  • If there is any malfunction, replace the power MOS FET.

Tester lead | Resistance (kilohm) (approx. quantity)
--- | ---
+ | −
A | B | 1,300
A | C | 1,300
A | D | 2.2
B | A | ∞
B | C | 0.12
B | D | ∞
C | A | ∞
C | B | 0.12
C | D | ∞
D | A | 2.2
D | B | 190
D | C | 1,300