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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 204 (Engine Controls - Self-Diagnostics - 1.8L - Ca) >> Diagnostic Tests >> DTC P1148: Closed Loop Control >> On Board Diagnosis Logic

On Board Diagnosis Logic

WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

DTC is set when the closed loop control function does not operate even when vehicle is driving in the specified condition. Possible causes are:

If DTC P1148 is displayed with another DTC for air/fuel ratio (A/F) sensor (sensor 1), perform the trouble diagnosis for the corresponding DTC.

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