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P1148 2004 Nissan Maxima Code - Closed Loop Control Function Bank 1

- Code Popularity: 13,306 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1148 2004 Nissan Maxima?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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
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How to Fix the DTC P1148 2004 Nissan Maxima?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

There are factory service bulletins for the following models:

2004 Nissan Maxima w/ 5 Speed Automatic Transmission
2004 Nissan Maxima Factory Service Bulletin P1148 OBDII Code

2004 Nissan Maxima w/ Manual Transmission or 4 Speed Automatic Transmission
2004 Nissan Maxima Factory Service Bulletin P1148 OBDII Code

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1148 2004 Nissan Maxima code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P1148 2004 Nissan Maxima Description

The Engine Control Module (ECM) performs ON/OFF duty control of the Air Fuel Ratio (A/F)/Heated Oxygen Sensor 1 heater corresponding to the engine operating condition to keep the temperature of Air Fuel Ratio (A/F)/Heated Oxygen Sensor 1 element at the specified range. The Diagnostic Trouble Code (DTC) will be set when the closed loop control function for bank 1 does not operate even when the vehicle is driving in the specified condition or the closed loop control function for bank 2 does not operate even when the vehicle is driving in the specified condition.

OBDII Code P1148 2004 Nissan Maxima - Closed Loop Control Function Bank 1 - AutoCodes.com
P1148 2004 Nissan Maxima Code - Closed Loop Control Function Bank 1

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