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Home >> Buick >> 1998 >> Skylark 2.4 T >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Body Control Module) >> Symptom Tests >> Engine Coolant Temperature Gauge Malfunctioning

Engine Coolant Temperature Gauge Malfunctioning

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 engine coolant temperature signal is correct, go to next step. If engine coolant temperature signal is incorrect, see appropriate TESTS W/CODES article in ENGINE PERFORMANCE section:
  2. Using scan tool, monitor BFC SPI serial data bus. If engine coolant temperature signal is correct, replace instrument cluster. See INSTRUMENT PANEL article. If engine coolant temperature signal is incorrect, perform an instrument cluster WOW. If engine coolant temperature signal is still incorrect, replace BFC. See REMOVAL & INSTALLATION  .
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