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Home >> Nissan-Datsun >> 2008 >> Altima Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Control System (Hybrid)) >> Component Diagnosis >> P2A00 A/F Sensor 1 >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

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

To judge the malfunction, the A/F signal computed by ECM from the A/F sensor 1 signal is monitored not to be shifted to LEAN side or RICH side.

DTC DETECTING CONDITION AND POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible Cause
P2A00 Air fuel ratio (A/F) sensor 1 circuit range/performance
  • The output voltage computed by ECM from the A/F sensor 1 signal is shifted to the lean side for a specified period.
  • The A/F signal computed by ECM from the A/F sensor 1 signal is shifted to the rich side for a specified period.
  • A/F sensor 1
  • A/F sensor 1 heater
  • Fuel pressure
  • Fuel injector
  • Intake air leaks