Test Description

WARNING: This page is about a different car, the 1995 Oldsmobile Ninety-Eight and 1995 Buick Park Avenue. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Test numbers refer to numbers on diagnostic chart.

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

Fig 2: Code P0112 Flow Chart (3.8L) IAT Sensor Circuit Low Temperature Indicated