AutoCodes - OBDII Code List - P0141 1999 FORD F150

P0141 1999 FORD F150 - O2 Heater Circuit Bank 1 Sensor 2

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3
Table of contents

P0141 1999 FORD F150 Possible Causes

  • Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2
  • Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse
  • Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground
  • Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How do I fix code P0141 1999 FORD F150?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Tech Notes

Replacing the O2 Sensor 1 usually takes care of the problem.
During testing the HO2S Heaters are checked for opens/shorts and excessive current draw. The test fails when the current draw exceeds a calibrated limit and/or an open or short is detected.





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Cost of diagnosing the P0141 1999 FORD F150 code

Labor: 1.0

The cost of diagnosing the P0141 1999 FORD F150 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the code detected?

During testing the oxygen sensor (HO2S) heaters are checked for open and short circuits and exessive current draw

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Possible higher than usual fuel Consumption

P0141 1999 FORD F150 Description

Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
OBDII Code P0141 1999 Ford F150 - O2 Heater Circuit Bank 1 Sensor 2 - AutoCodes.com

More Information

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