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DTC P0112 Circuit Description The intake air temperature (IAT) sensor is a variable resistor. The IAT sensor has a signal circuit and a low Conditions for Running the DTC z DTCs P0502, P0503 are not set. z The engine run time is more than 45 seconds. 11 Refer to Circuit Testing and Wiring Repairs in - Go to Step 15 Go to Step 12 12 Test for an intermittent and for a poor connection at - Go to Step 15 Go to Step 14 13 Replace the MAP sensor. Refer to Manifold - Go to Step 15 - 14 Replace the PCM. Refer to Powertrain Control - Go to Step 15 - 15 1. Clear the DTCs with a scan tool. 2. Turn OFF the ignition for 30 seconds. 3. Start the engine. 4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the Did the DTC fail this ignition? - Go to Step 2 Go to Step 16 16 Observe the Capture Info with a scan tool. - Go to Diagnostic Trouble Code (DTC) List System OK
2004 Hummer H2 2004 ENGINE PERFORMANCE Engine Controls Diagnosis (DTC P0068 To DTC P0141/P0161) - 4.8L, 5.3L, and 6.0L - Hummer H2
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