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Home >> Nissan-Datsun >> 2008 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS U1000 To P0153 >> DTC P0130, P0150 A/F Sensor 1 >> On Board Diagnosis Logic

On Board Diagnosis Logic

To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the air fuel ratio (A/F) sensor 1 signal fluctuates according to fuel feedback control.

DTC DETECTING CONDITION AND POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible Cause
P0130
0130
(Bank 1)		 Air fuel ratio (A/F) sensor 1 circuit A) The A/F signal computed by ECM from the A/F sensor 1 signal is constantly in the range other than approx. 1.5V.
  • Harness or connectors (The A/F sensor 1 circuit is open or shorted.)
  • Air fuel ratio (A/F) sensor 1
P0150
0150
(Bank 2)		 B) The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 1.5V.
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