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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 >> Notes
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Code 58, Pass-Key Fuel Enable: Notes

Code will set if Pass-Key fuel enable input is not correct but has been correct within this engine run cycle, engine run indicator is asserted and Pass-Key engine start timer has expired.

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. If engine will crank, part of Pass-Key system is functioning correctly.
  2. Checking PCM output, there will be 2-3 volts present on Pass-Key fuel enable input circuit if it is not open or shorted to ground.
  3. Checks if PCM is recognizing cranking fuel enable signal from Pass-Key decoder module.
  4. Checks Pass-Key fuel enable input circuit for short to voltage or open. If circuit is okay, Pass-Key decoder module is not able to produce a cranking fuel enable signal.