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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 913 (Transfer Case - Mp 1625/1626-NQF) >> Diagnostic Information and Procedures >> DTC B0780 >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

A short to ground on the 4 low indicator control circuit will cause the 4 low indicator to remain on at all times. An open or high resistance will cause the 4 low indicator to be inoperative during the 2 second bulb check.

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