DTC P0127: Intake Air Temperature (IAT) Too High

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P0127 - INTAKE AIR TEMPERATURE (IAT) TOO HIGH

Description:	Indicates that the IAT2 sensor has detected a potential abnormality in the intercooler system. This condition will cause the boost from the supercharger to be bypassed to avoid potential engine damage.
Possible Causes:	Blockage of heat exchangers Low fluid level Fluid leakage Intercooler pump or relay failure Crossed intercooler coolant lines
Diagnostic Aids:	Monitor the IAT2 PID. A typical IAT2 temperature should be greater than the IAT1 temperature. Refer to REFERENCE VALUES - GASOLINE MODELS for ranges.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to DU: Intake Air Temperature 2 (IAT2) Sensor STEP DU7.