Other information:
Diagnosis Procedure
Light reminder warning does not sound even though headlamp is illuminated.CHECK COMBINATION SWITCH (LIGHTING SWITCH) OPERATION
Check that the headlamps operate normally by operating the combination switch (lighting switch).
Do they operate normally?
YES>>
GO TO 2...
DTC Description
DTC DETECTION LOGICRationally incorrect voltage from the sensor is sent to ECM, compared with the voltage signal from engine coolant temperature sensor. DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0127
IAT SENSOR-B1
(Intake air temperature too high)
Diagnosis condition
—
Signal (terminal)
Voltage signal transmitted from intake air temperature sensor to ECM
Threshold
Rationally incorrect voltage from the sensor is sent to ECM, compared with the voltage signal from engine coolant temperature sensor
Diagnosis delay time
—
POSSIBLE CAUSE
Harness and connectors (The sensor circuit is open or shorted)
Intake air temperature sensor
FAIL-SAFENot applicable
DTC Confirmation Procedure
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test...