SAAB WIS ONLINE

DTC P0113 INTAKE AIR TEMPERATURE CIRCUIT HIGH INPUT

DTC P0113 INTAKE AIR TEMPERATURE CIRCUIT HIGH INPUT

DTC DETECTING CONDITION:


• Immediately at fault recognition

• GENERAL DESCRIPTION


TROUBLE SYMPTOM:


• Erroneous idling

• Poor driving performance


Important

After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .


WIRING DIAGRAM:


CHECK CURRENT DATA.

Start the engine.

Read the data of intake air temperature sensor signal using Vehicle Diagnostic Interface or the OBD-II general scan tool.

Note
• Vehicle Diagnostic Interface

For detailed operation procedure, refer to the “READ CURRENT DATA FOR ENGINE”.

• OBD-II general scan tool

For detailed operation procedure, refer to the OBD-II General Scan Tool Instruction Manual.


Is the temperature less than −36°C (−33°F)?

Yes


No

• Repair the poor contact.

•
Note

In this case, repair the following:

• Poor contact in mass air flow and intake air temperature sensor

• Poor contact in ECM

• Poor contact in joint connector



CHECK HARNESS BETWEEN MASS AIR FLOW AND INTAKE AIR TEMPERATURE SENSOR AND ECM CONNECTOR.

Turn the ignition switch to OFF.

Disconnect the connector from mass air flow and intake air temperature sensor.

Measure the voltage between mass air flow and intake air temperature sensor connector and engine ground.

Connector & terminal

(B3) No. 4 (+) — Engine ground (−):

Is the voltage more than 10 V?

Yes

Repair the battery short circuit in harness between mass air flow and intake air temperature sensor and ECM connector.


No


CHECK HARNESS BETWEEN MASS AIR FLOW AND INTAKE AIR TEMPERATURE SENSOR AND ECM CONNECTOR.

Turn the ignition switch to ON.

Measure the voltage between mass air flow and intake air temperature sensor connector and engine ground.

Connector & terminal

(B3) No. 4 (+) — Engine ground (−):

Is the voltage more than 10 V?

Yes

Repair the battery short circuit in harness between mass air flow and intake air temperature sensor and ECM connector.


No


CHECK HARNESS BETWEEN MASS AIR FLOW AND INTAKE AIR TEMPERATURE SENSOR AND ECM CONNECTOR.

Measure the voltage between mass air flow and intake air temperature sensor and manifold absolute pressure sensor connector and engine ground.

Connector & terminal

(B3) No. 4 (+) — Engine ground (−):

Is the voltage more than 4 V?

Yes


No

• Repair the harness and connector.

•
Note

In this case, repair the following:

• Open circuit in harness between mass air flow and intake air temperature sensor and ECM connector

• Poor contact in mass air flow and intake air temperature sensor

• Poor contact in ECM

• Poor contact in joint connector



CHECK HARNESS BETWEEN MASS AIR FLOW AND INTAKE AIR TEMPERATURE SENSOR AND ECM CONNECTOR.

Turn the ignition switch to OFF.

Measure the resistance of harness between mass air flow and intake air temperature sensor and engine ground.

Connector & terminal

(B3) No. 5 — Engine ground:

Is the resistance less than 5 Ω?

Yes

Replace the mass air flow and intake air temperature sensor.


No

• Repair the harness and connector.

•
Note

In this case, repair the following:

• Open circuit in harness between mass air flow and intake air temperature sensor and ECM connector

• Poor contact in mass air flow and intake air temperature sensor

• Poor contact in ECM

• Poor contact in joint connector