Description
The intake air temperature sensor is built-into the mass air flow sensor (1). The sensor detects intake air temperature and transmits a signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in response to the rise in temperature.
<Reference data>
*: These data are reference values and are measured between ECM terminals 50 (Intake air temperature sensor) and 56 (Sensor ground).
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
2.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-196, "Component Function Check".
NOTE: Use the component function check to check the overall function of the IAT sensor circuit. During this check, a 1st trip DTC might not be confirmed.
3.PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION:
4.PERFORM DTC CONFIRMATION PROCEDURE
CAUTION: Never turn ignition switch ON during soaking.
NOTE: The vehicle must be cooled with the food open.
Component Function Check
1.CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR
2.CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Diagnosis Procedure
1.CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR
Check intake air temperature sensor.
2.CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Component Inspection
1.CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR
Unlock sensor
Description
Detects door lock condition of driver door.
Component Function Check
1. CHECK FUNCTION
With CONSULT
Check unlock sensor UNLK SEN−DR in "Data Monitor" mode.
Diagnosis Procedure
1. CHECK UNLOCK SENSOR POWER SUPPLY
Check signal between BCM connector and ground with o ...
DLC branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the data link connector for
damage, bend and loose connection
(connector side and harness side).
2.CHECK HARNESS FOR OP ...
Wiring diagram
BCM (BODY CONTROL MODULE)
Wiring Diagram
...