Component Inspection

1. Turn ignition switch ON.
2. Select "DATA MONITOR" mode with CONSULT.
3. Make sure that "COOLAN TEMP/S" indicates 60°C (140°F) or more. If not, cool engine down or warm engine up until "COOLAN TEMP/S" indicates between 60°C (140°F) or more. Then go to the following steps.
4. Fully release accelerator pedal and make sure that "TUMBLE POS SEN" indicates between 2.8 V to 4.5 V.
5. Depress accelerator pedal and make sure that "TUMBLE POS SEN" indicates between 0.2 V to 1.4 V.
6. Check 1st trip DTC.

Is 1st trip DTC detected?

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Replace intake manifold assembly. Refer to Removal and Installation .

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GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect intake manifold runner control valve harness connector.
3. Check the resistance between intake manifold runner control valve terminals as per the following.

   Intake manifold runner control valve		Resistance (Approx.)
   +	-
   Terminal
   1	2	3 - 8 Ω [at 25°C (77°F)]

Is the inspection result normal?

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INSPECTION END

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Replace intake manifold assembly. Refer to Removal and Installation .