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Home >> Nissan-Datsun >> 2009 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Control System - DTCS P0643 To P2A00 (MR20DE-CALIFORNIA)) >> DTC P1148 Closed Loop Control >> On Board Diagnosis Logic
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On Board Diagnosis Logic

WARNING: This page is about a different variant/trim than selected.

This self-diagnosis has the one trip detection logic  .

DTC DETECTING CONDITION AND POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1148
1148
Closed loop control function The closed loop control function does not operate even when vehicle is driving in the specified condition.
  • Harness or connectors [Air fuel ratio (A/F) sensor 1 circuit is open or shorted.]
  • Air fuel ratio (A/F) sensor 1
  • Air fuel ratio (A/F) sensor 1 heater
NOTE: DTC P1148 is displayed with another DTC for air fuel ratio (A/F) sensor 1.
Perform the trouble diagnosis for the corresponding DTC.