Testing Diodes of Diode Matrix

Preeding work:
Test, Testing Inputs and Outputs of Diode Matrix

Blocking direction
Diodes in diode matrix (V2)
measure by setting multimeter to diode test: terminal (red) to output 5. Terminal (black) in turn to the inputs; see wiring diagrams.

NOTE: Pay attention to daytime headlamp wiring diagram.

Specification: infinity ohms
Specification not reached, renew diode matrix (V2).

Conducting direction
Diodes in diode matrix (V2)
measure by setting multimeter to diode test: terminal (black) to output 5. Terminal (red) in turn to the inputs; see wiring diagrams.

Specification: breakdown voltage approx. 1 V.
Specification not reached; renew diode matrix (V2).

Commercially available testers
Multimeter e.g. Fluke 23 or 83