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Home >> Oldsmobile >> 1991 >> Toronado Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.8L PFI >> Diagnostic Flow Charts For Codes: 13 To 68 >> Code 26, (2 Of 3) Quad-Driver Circuit >> Notes
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Code 26, (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.