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Oldsmobile
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1991
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Toronado Base
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine Controls - Tests W/Codes - Pcm/BCM
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Flow Charts For ECM/Pcm Codes: EO13 To EO69
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Code EO26, (2 Of 3) Quad-Driver Circuit
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Notes
Code EO26, (2 Of 3) Quad-Driver Circuit: Notes
2)
This determines which circuit is out of specification. All circuits except GD16 and GD15 should have battery voltage with ignition on, engine not running and ALDL test terminal not grounded.