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Infiniti > Engine Codes > P1148


Models:	Most Infiniti Models

DTC: P1148

Search Bulletins/Recalls for P1148

Trouble diagnosis name: Closed loop control function (Bank 1)

Diagnosis Logic

DTC detecting condition:

The closed loop control function for bank 1 does not operate even when vehicle is driving in the specified condition.

Possible cause:

The heated oxygen sensor 1 circuit is open or shorted.
Heated oxygen sensor 1
Heated oxygen sensor heater

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