DTC P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance Bank 1: Notes
WARNING: This page is about a different variant/trim than selected.
DTC detecting condition:
Detected when two consecutive driving cycles with fault occur.
Trouble symptom:
- Improper idling
- Poor driving performance
CAUTION:
- After servicing or replacing faulty parts, perform Clear Memory Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Clear Memory Mode . and Inspection Mode Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Inspection Mode .
- Use the check board when measuring the ECM terminal voltage and resistance.
Wiring diagram:
Engine Electrical System Ref. to WIRING SYSTEM>Engine Electrical System>WIRING DIAGRAM .
- CHECK FOR ANY OTHER DTC ON DISPLAY.
Is any other DTC displayed?
- Yes: Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>List of Diagnostic Trouble Code (DTC) .
- No: Go to 2.
- CHECK MASS AIR FLOW AND INTAKE AIR TEMPERATURE SENSOR.
- Disconnect the connectors from the mass air flow and intake air temperature sensor.
- Measure the resistance between the mass air flow and intake air temperature sensor terminals when the engine is cold and after warmed up.
Terminals
No. 1 -No. 2:
Is the resistance of the mass air flow and intake air temperature sensor different between when engine is cold and after warmed up?
- Yes: Repair the poor contact of ECM connector.
- No: Replace the mass air flow and intake air temperature sensor. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Mass Air Flow and Intake Air Temperature Sensor .