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Home >> Infiniti >> 2017 >> QX60 Base, FWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (Except Hybrid) (2 Of 4) >> DTC/Circuit Diagnosis >> DTC P0131, P0151: A/F Sensor 1 >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0131 A/F SENSOR1 (B1)
[Air fuel ratio (A/F) sensor 1 (bank 1) circuit low voltage]
Diagnosis condition -
Signal (terminal) A/F sensor 1 (bank 1) signal
Threshold The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 0 V
Diagnosis delay time -
P0151 A/F SENSOR1 (B2)
[Air fuel ratio (A/F) sensor 1 (bank 2) circuit low voltage]
Diagnosis condition -
Signal (terminal) A/F sensor 1 (bank 2) signal
Threshold The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 0 V
Diagnosis delay time -