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Home >> Cadillac >> 1992 >> DeVille Touring >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Pcm Trouble Code Diagnosis >> Pcm Code E58, Pass-Key Fuel Enable Problem >> Action

Pcm Code E58, Pass-Key Fuel Enable Problem: Action

PCM turns on SERVICE VEHICLE SOON light and enables fuel injection on future ignition cycles without regard for PASS-KEY fuel enable input status.

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. If engine will crank, problem has been isolated to PASS-KEY module, PCM or fuel enable circuit. If engine will not crank, problem is in PASS-KEY system.
  2. Checking voltage input to PCM will identify if PCM is at fault. Typical signal will be about 2.5 volts.
  3. Voltage is too low. Possible faulty PASS-KEY module, poor connection at PCM or short to ground in fuel enable circuit.
  4. Voltage is too high. Possible faulty PASS-KEY module, poor connection at PASS-KEY module or short to voltage or open in fuel enable circuit.