Service Training
Section 2.6
Page 8
TESTING THE PROTECTIVE DIODE IN THE POWER MODULE
- Perform the test with the multimeter set to the Ohm range, + lead connected to source 1, - lead connected
to drain 2.
The protective diode does not block, low impedance indicated.
- + lead connected to drain 2, - lead connected to source 1.
The protective diode blocks, high impedance is indicated.
- If both readings are the same, the diode is defective.
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