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Home >> Oldsmobile >> 1990 >> Toronado Base, 4T60/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - ECM >> ECM Trouble Code Charts >> Code E043, Electronic Spark Control (ESC) Circuit >> Diagnostic Aids
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Diagnostic Aids

Check circuit No. 496 for a potential open or short to ground. Also check for proper installation of MEM-CAL.

Fig 1: Code E043: Circuit Diagram & Flow Chart ESC Circuit
G90H14354
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