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Home >> Cadillac >> 1994 >> DeVille Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.9L >> Pcm Code Charts >> Code P058, Pass-Key(R) Fuel Enable Problem >> Action
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Code P058, Pass-Key(R) Fuel Enable Problem: Action

"THEFT SYSTEM PROBLEM, CAR MAY NOT RESTART" message is displayed on DIC. Enables fuel injection on future ignition cycles without regard for PASS-Key(R) 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(R) module, PCM or fuel enable circuit. If engine will not crank, perform PASS-Key(R) system diagnosis. See PASS-KEY(R) DIAGNOSIS.
  2. Checking voltage to PCM will identify if PCM is at fault. Typical signal will be about 2.5 volts.
  3. If voltage is too low, check for faulty PASS-Key(R) decoder module, poor PCM connection or fuel enable circuit shorted to ground.
  4. If voltage is too high, check for faulty PASS-Key(R) decoder module, poor connection at decoder module or fuel enable circuit is shorted to voltage or is open.