Linde E25 Service Training page 64

Section 2.6
Page 10
TESTING THE REGENERATIVE BRAKING DIODE IN THE POWER MODULE
- Perform the test with the multimeter set to the Ohm range, + lead connected to 5, - lead connected to 1.
The diodes block, high impedance is indicated.
- - lead connected to 5, + lead connected to 1.
The diodes do not block, low impedance is indicated.
- If both readings are the same, the diode is defective.
Service Training