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Home >> Buick >> 1995 >> LeSabre Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> ECM/Pcm Code Charts >> DTC P0112: IAT Sensor Circuit Low Temperature Indicated >> Test Description
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Test Description

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. An open sensor, wire or connection will cause Code P0112 to set. An open circuit would cause scan tester to display about -40°C. This test determines if wiring and PCM are okay.
Fig 1: Code P0112 Schematic (3.8L) IAT Sensor Circuit Low Temperature Indicated
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Fig 2: Code P0112 Flow Chart (3.8L) IAT Sensor Circuit Low Temperature Indicated
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