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Home >> Oldsmobile >> 1995 >> Aurora >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.0L >> ECM/Pcm Code Charts >> Code 58, Pass-Key Fuel Enable >> Diagnostic Aids
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Diagnostic Aids

If code is intermittent this could be caused by an intermittent short to ground, an intermittent open or an intermittent loss of power or ground to the Pass-Key module. Pass-Key module reads ignition key once when the ignition first turns on; therefore, a faulty key pellet and circuits to the ignition lock can cause a no-start condition but cannot cause a stalling condition.

Fig 1: Code 58 Schematic (4.0L) Pass-Key Fuel Enable
G95E14195
Fig 2: Code 58 Diagnostic Flow Chart (4.0L) Pass-Key Fuel Enable
G95D14194