CHECK POWER SUPPLY OF MANIFOLD ABSOLUTE PRESSURE AND INTAKE AIR TEMPERATURE SENSOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from the manifold absolute pressure and intake air temperature sensor.

3) Turn the ignition switch to ON.

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

Connector & terminal

(E124) No. 3 (+) — Engine ground (−):

QUESTION

Is the voltage 4.5 V or more?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

• Open circuit of harness between ECM connector and the manifold absolute pressure and intake air temperature sensor connector

• Poor contact of ECM connector

• Poor contact of coupling connector