Intermittent Test

Observe IAT on Tech 1 while moving related connectors and wiring harness with warm engine running. If failure is induced, IAT display will change to a -40° temperature reading. This may assist in isolating location of malfunction.

Fig 1: Code P0112 Schematic ("S" & "T" Series 4.3L - VIN W) IAT Sensor Circuit Low Input

Fig 2: Code P0112 Flow Chart ("S" & "T" Series 4.3L - VIN W) IAT Sensor Circuit Low Input