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Home >> Cadillac >> 1991 >> DeVille Touring >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> BCM Flow Charts Codes F10 To F48 >> BCM Code F13, In-Vehicle Temperature Sensor >> Test Procedures
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Test Procedures

NOTE: Test numbers refer to test numbers on diagnostic chart.
  1. If temperature reading changes after disconnecting sensor, the BCM and wiring are okay.
  2. If temperature reading changes after jumpering sensor terminals, the BCM and wiring are okay.
  3. By applying a ground to various points in circuit, an open can be isolated when display changes to outside the range of -29°F to 194°F (-34°C to 90°C).
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