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Check Oil Indicator Lights Continuously With No Loss Of Serial Data

WARNING: This page is about a different car, the 1998 Oldsmobile Cutlass and 1998 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
  1. Using scan tool, monitor PCM. If PCM is commanding CHECK OIL indicator ON, go to appropriate TESTS W/CODES article in ENGINE PERFORMANCE section:

    If PCM is commanding CHECK OIL indicator OFF, go to next step.

  2. Using scan tool, monitor BFC SPI serial data link. If BFC is commanding CHECK OIL indicator ON, replace BFC. See procedures in REMOVAL & INSTALLATION  . If BFC is commanding CHECK OIL indicator OFF and indicator is illuminated, replace instrument cluster. See INSTRUMENT PANEL article.
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