DTC P0111: Notes

DTC P0111 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0111	IAT sensor circuit range/performance
DETECTION CONDITION	Indicates the IAT rationality test has failed. This DTC indicates that the IAT value is higher than a calibrated value and could prevent 1 or more on-board diagnostic (OBD) monitors from completing. The PCM runs this logic after an engine off and a calibrated soak period (typically 6 hours) This soak period allows IAT and CHT to stabilize and not differ by more than a calibrated value. DTC P0111 is set when: the IAT at engine start exceeds the CHT by more than a calibrated value, typically 17 °C {30 °F}.
POSSIBLE CAUSE	IAT sensor malfunction

DTC P0111

IAT sensor circuit range/performance

DETECTION CONDITION

Indicates the IAT rationality test has failed. This DTC indicates that the IAT value is higher than a calibrated value and could prevent 1 or more on-board diagnostic (OBD) monitors from completing. The PCM runs this logic after an engine off and a calibrated soak period (typically 6 hours) This soak period allows IAT and CHT to stabilize and not differ by more than a calibrated value. DTC P0111 is set when: the IAT at engine start exceeds the CHT by more than a calibrated value, typically 17 °C {30 °F}.

POSSIBLE CAUSE