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 for ranges.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to Pinpoint Test DU .