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DTC P0111: Notes

DTC P0111 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES

DTC P0111

IAT sensor circuit range/performance problem

DETECTION CONDITION

If the intake air temperature is higher than the engine coolant temperature by 18 °C {32 °F} for 1.2 s or the intake air temperature is lower than the engine coolant temperature by -48 °C {-86 °F} for 1.2 s with the ignition switch is ON*, the PCM determines that there is a IAT sensor circuit range/performance problem.
*: Ignition switch is ON when 6 h or more have passed since the ignition was switched to off.

Diagnostic support note

This is a continuous monitor (CCM).
MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
FREEZE FRAME DATA (Mode 2/Mode12) is available.
DTC is stored in PCM memory.

POSSIBLE CAUSE

Poor connection at MAF/IAT sensor
IAT sensor malfunction
Poor connection at PCM connector
PCM malfunction