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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1572 (Wiring Systems And Power Management - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Troubleshooting with a Digital Multimeter >> Digital Multimeter (DMM) Basic Requirements >> Diode Test

Diode Test

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Apply at least 1 mA when performing the diode bias test
  2. Display the break over voltage drop (0-3 V) of a forward biased diode
  3. Display infinite (O.L. (Over-load)) when a diode is reverse biased
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