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P1148 2002 NISSAN ALTIMA SEDAN

P1148 2002 NISSAN ALTIMA SEDAN - Closed Loop Control Function Bank 1

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
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Possible causes

  • Faulty Heated Oxygen Sensor 1 Bank 1
  • Heated Oxygen Sensor 1 Bank 1 circuit is open or shorted
  • Heated Oxygen Sensor 1 Bank 1 circuit electrical connection

When is the code detected?

The closed loop control function for bank 1 does not operate even when vehicle is driving in the specified condition, the closed loop control function for bank 2 does not operate even when vehicle is driving in the specified condition.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1148 2002 Nissan Altima Sedan Description

The Engine Control Module (ECM) performs ON/OFF duty control of the Heated Oxygen Sensor 1 heater corresponding to the engine operating condition to keep the temperature of Heated Oxygen Sensor 1 element at the specified range.
OBDII Code P1148 2002 Nissan Altima Sedan - Closed Loop Control Function Bank 1 - AutoCodes.com

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P1148 2002 NISSAN ALTIMA SEDAN Comments

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