Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Infiniti >> 2012 >> FX50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 230 (Engine Control System - DTCS P0130 Through P0445) >> DTC P0132, P0152: A/F Sensor 1 >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2011 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.

To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal is not inordinately high.

DTC DETECTION LOGIC

DTC No. Trouble diagnosis name DTC detecting condition Possible Cause
P0132 Air fuel ratio (A/F) sensor 1 (bank 1) circuit high voltage
  • The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 5 V.
  • Harness or connectors (The A/F sensor 1 circuit is open or shorted.)
  • A/F sensor 1
P0152 Air fuel ratio (A/F) sensor 1 (bank 2) circuit high voltage
scientia non olet · About Mike's Workshop Manuals