P0110

Reference Data:

COMPONENT DESCRIPTION
The intake air temperature sensor is mounted to the air duct housing. 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 temperature rise.

ON BOARD DIAGNOSIS LOGIC:

DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE
Perform "Procedure for malfunction A" first. If DTC cannot be confirmed, perform "Procedure for malfunction B".

NOTE: If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test

Procedure for malfunction A




With Consult
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

OR

With Generic Scan Tools
1. Turn ignition switch "ON" and wait at least 5 seconds.
2. Select MODE 7 with GST.
3. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

OR

Without Scan Tools
1. Turn ignition switch "ON" and wait at least 5 seconds.
2. Turn ignition switch "OFF", wait at least 5 seconds and then turn "ON".
3. Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM.
4. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.







Procedure for malfunction B

CAUTION: Always drive vehicle at a safe speed.

TESTING CONDITION:
This test may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.

With Consult
1. Wait until engine coolant temperature is less than 90°C (194°F).
a. Turn ignition switch "ON".
b. Select "DATA MONITOR" mode with CONSULT-II.
c. Check the engine coolant temperature.
d. If the engine coolant temperature is not less than 90°C (194°F), turn ignition switch "OFF" and cool down engine.
Perform the following steps before engine coolant temperature is above 90°C (194°F).

2. Turn ignition switch "ON".
3. Select "DATA MONITOR" mode with CONSULT-II.
4. Start engine.
5. Hold vehicle speed more than 70 kph (43 MPH) for 105 consecutive seconds.
6. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

OR




With Generic Scan Tools
1. Wait until engine coolant temperature is less than 90°C (194°F).
a. Turn ignition switch "ON".
b. Select MODE 1 with GST.
c. Check the engine coolant temperature.
d. If the engine coolant temperature is not less than 90°C (194°F), turn ignition switch "OFF" and cool down engine.
Perform the following steps before engine coolant temperature is above 90°C (194°F).

2. Start engine.
3. Hold vehicle speed more than 70 kph (43 MPH) for 105 consecutive seconds.
4. Select MODE 7 with GST
5. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

OR

Without Scan Tools
1. Wait until engine coolant temperature is less than 90°C(194 1|F).
a. Turn ignition switch "ON".
b. Check voltage between ECM terminal (51) and ground.
Voltage: More than 1.0 (V)
c. If the voltage is not more than 1.0 (V), turn ignition switch "OFF" and cool down engine.
Perform the following steps before the voltage is below 1.0V.

2. Start engine.
3. Hold vehicle speed more than 70 kph (43 MPH) for 105 consecutive seconds.
4. Turn ignition switch "OFF", wait at least 5 seconds and then turn "ON".
5. Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM.
6. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

EC-IATS-01:

EC-IATS-01 - Connector View:

WIRING DIAGRAM

M8, E65:

Diagnostic Procedure:

DIAGNOSTIC PROCEDURE

COMPONENT INSPECTION







Intake air temperature sensor
Check resistance as shown in the figure.

Reference Data:

If NG, replace intake air temperature sensor.