| 摘要 |
Upon satisfaction of the condition for making the malfunction diagnosis at least one of the EGR system, the air-fuel ratio sensor 135a and the oxygen sensor 135b during the fuel cut of the engine 22, a fuel cut of the engine 22 and performing the mortaring of the engine 22 by means of the motor MG1 are continued until the completion of the malfunction diagnoses of all objects, of which the each condition for making the malfunction diagnosis is satisfied among the EGR system, the air-fuel ratio sensor 135a and the oxygen sensor 135b. This arrangement ensures the occasions for making the malfunction diagnoses of the EGR system, the air-fuel ratio sensor 135a and the oxygen sensor 135b.
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