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Home >> GMC >> 1995 >> Forward Control 7.4 N >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 6.5L Diesel. >> Diagnostic Trouble Code Charts >> Chart A-1, No Mil (Service Engine Soon Light) (Models W/ Pcm) >> Diagnostic Aids
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Diagnostic Aids

If engine functions properly, check for a burned out bulb, blown GAUGES or ALT fuse, or an open in the MIL (SERVICE ENGINE SOON) control circuit. This will result in no brake warning light, oil or generator lights, seat belt reminder, etc.

Fig 1: Chart A-1 Schematic ("G" Series) No MIL (Service Engine Soon Light - Models W/ PCM)
G95C26932
Fig 2: Chart A-1 Schematic ("P" Series) No MIL (Service Engine Soon Light - Models W/ PCM)
G95D26933
Fig 3: Chart A-1 Flow Chart (All Models) No MIL (Service Engine Soon Light - Models W/ PCM)
G93C76580