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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 92 (Engine Controls - Self-Diagnostics - 6.6L Diesel) >> Diagnostic Tests >> DTC P0380: Glow Plug Circuit Performance (Fed) >> Conditions For Setting DTC

Conditions For Setting DTC

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The ECM has commanded glow plugs ON and the glow plug signal voltage is less than 4 volts; or the ECM has commanded glow plugs OFF and the glow plug signal voltage is more than 4 volts.