DTC P058: Pass Key® Fuel Enable Problem: Action

1. IPC turns on the "CHECK INFO CENTER" telltale.
2. "THEFT SYSTEM PROBLEM, CAR MAY NOT RESTART" message.
3. PCM will enable fuel injection on future ignition cycles regardless of the PASS Key® enable input status.

NOTE: Numbers in list refer to circled numbers in diagnostic flow chart, see Fig 1. For circuit identification see Fig 2.

1. If engine will crank, then part of the PASS Key® system is operating correctly.
2. Checking PCM output. There will be 2-3 volts present at PCM terminal "2C8", if the PCM is OK and CKT 229 is not open or shorted.
3. Checking if PCM is recognizing cranking fuel enable signal from the PASS Key® Decoder Module.
4. Checking CKT 229 for a short to voltage or an open. If CKT 229 OK, PASS Key® decoder module is not able to produce a cranking fuel enable signal.

Fig 1: DTC P058: Pass Key® Fuel Enable Problem Flow Chart

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC P058: Pass Key® Fuel Enable Problem Flow Chart Circuit

Courtesy of GENERAL MOTORS CORP.