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P0072-INLET AIR TEMP SENSOR VOLTAGE TOO LOW (CONTINUED) 3. HARNESS SHORTED (INLET AIR TEMPERATURE SENSOR SIDE) Turn the ignition off. Disconnect the inlet Air Temp sensor harness connector. Disconnect the ECM harness connector. Check connectors - Clean/repair as necessary. Measure the resistance between the engine ground and the (K615) Is the resistance more than 100 k ohms? Yes >> Go To 4 No >> Repair or replace the Engine harness shorted. Perform POWERTRAIN VERIFICATION TEST VER - 1 4. HARNESS SHORTED (ECM SIDE) Measure the resistance between the (K615) signal circuit and all other Is the resistance more than 100 k ohms? Yes >> Go To 5 No >> Repair or replace the ECM harness shorted. Perform POWERTRAIN VERIFICATION TEST VER - 1 9 - 1066 ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL DR/DH |