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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (Engine Controls Self-Diagnostics - 6.5L) >> Diagnostic Tests >> DTC P0380: Glow Plug Circuit Performance (Fed) >> Conditions for Setting DTC

Conditions for Setting DTC

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The PCM has commanded glow plugs ON and the glow plug voltage is less than 4 volts; or the PCM has commanded glow plugs OFF and the glow plug voltage is more than 4 volts; or the PCM has commanded the glow plugs ON and there is more than a 2 volt difference between the glow plug voltage and the ignition voltage.

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