Lighting and Horns: Testing and Inspection
Light Emitting Diode (LED), Checking
The negative pole is indicated by:
1 - Flat on diode housing
2 - Larger pole in diode housing
On some diodes the negative pole connector is additionally angled.
- Digital multimeter VAG 1315A (Fluke 83 or equivalent) , press the resistance and voltage buttons simultaneously -arrows-.
- Connect red terminal (+) to LED (+)
- Connect black terminal (-) to LED (-).
LED must light.