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HOMESERVICE MANUALSCHEVROLET1995CAVALIER LS, 4D SEDAN, 2.2 4REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 4 (ENGINE CONTROLS - TESTS W/CODES - 4.6L)PCM CODE CHARTSCODE P047 & P107, IPC-TO-PCM DATA LINK PROBLEMACTION
1995 Chevrolet Cavalier LS, 4D Sedan, 2.2 4

Code P047 & P107, IPC-To-Pcm Data Link Problem: Action

1995 Chevrolet Cavalier LS, 4D Sedan, 2.2 4SECTION Action
WARNING: This page is about a different car, the 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

PCM turns on MIL. PCM sets all data to zero. PCM boosts idle to compensate for possible A/C clutch engagement. Cooling fan control will be based on engine coolant temperature only.

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. If one code is set without the other, PCM has an internal communication problem.
  2. Checks if data link is not functioning at all.
  3. Checks if PROM is seated correctly in socket.
  4. Checks which components have data link problem to IPC.
  5. Checks if IPC is having data link problem with PCM or if PCM is having a data link problem with IPC.
  6. Checks if data link is open or if PCM is faulty.
  7. Checks for wake-up sequence problem.
Fig 1: Code P047 & P107 Schematic, IPC-To-PCM Data Link Problem
G95I13266Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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