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." property="og:description">

For Shop Owners

P0141 - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3 What does this mean?

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)
What does this mean?

Tech notes

The code means that there is a problem with the heater element circuit of the heated oxygen sensor. The control module monitors how long it take the sensor to warm up and start sending an adequate signal. The code is triggered when the sensor is taking too long to warm up. Water getting inside the heated oxygen sensor connector can caused the heated oxygen sensor fuse to blow. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. If the sensor and connector are OK, replacing the O2 Sensor 1 usually takes care of the problem
What does this mean?

When is the code detected?

Current amperage in the rear heated oxygen sensor heater circuit is out of the normal range.

Possible symptoms

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

P0141 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 - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2 - k1no-portal.ru

P0141 Information for specific makes

P0141 ACURA O2 Sensor 1 Sensor 2 Heater Circuit Malfunction Bank
P0141 AUDI HO2S12 Sensor Heater Circuit
P0141 BMW O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 BUICK O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 CADILLAC O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 CHEVROLET O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 CHRYSLER O2 Sensor 1/2 Heater Performance
P0141 DODGE O2 Sensor 1/2 Heater Performance
P0141 FORD O2 Heater Circuit Bank 1 Sensor 2
P0141 GMC O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 HONDA O2 Bank 1 Sensor 2 Heater Circuit Malfunction Bank
P0141 HUMMER O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 HYUNDAI HO2S Heater Circuit Bank 1 Sensor 2
P0141 INFINITI Rear Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 ISUZU HO2S Heater Performance Sensor 2
P0141 JEEP O2 Sensor 1/2 Heater Performance
P0141 KIA HO2S12 Heater Circuit
P0141 LEXUS HO2S12 Heater Circuit Malfunction
P0141 MAZDA HO2S12 Heater Circuit Fault
P0141 MERCEDES-BENZ O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 MINI O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 MITSUBISHI HO2S 12 Heater Performance
P0141 NISSAN Rear Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 PONTIAC O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 SATURN O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 SCION HO2S12 Heater Circuit Malfunction
P0141 TOYOTA HO2S12 Heater Circuit Malfunction
P0141 VOLKSWAGEN HO2S12 Sensor Heater Circuit

Need more help?

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P0141 Comments

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Any information is appreciated. Thanks
Repair Importance Level: 2
1=Low 2=Medium 3=High
Repair Difficulty Level: 2
1=Easy 2=Moderate 3=Hard

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