P0141 - O2 SENSOR HEATER CIRCUIT MALFUNTION BANK 1 SENSOR 2

POST UPDATED IN January, 2023

Description of DTC code P0141 Generic

Oxygen Sensors (O2) must have a minimum temperature of 750° F in order to operate efficiently and produce a precise voltage signal. The shorter the time the oxygen sensor reaches this temperature, the faster the signal will be sent to the ECM (Engine Control Module).

In order for the sensors to reach the temperature they need, they have a heating element inside, which is controlled by the Engine Control Module (ECM) based on the engine coolant temperature and engine load signals. It also controls the circuit of this heating element and allows the flow of current to ground. It also handles the voltage signal received by the heating element circuit and establishes the status of the circuit through comparisons between the detected voltage and factory specifications.

Symptoms of fault code P0141 Generic

  • Check Engine light's on.
  • Fuel consumption may be higher than usual.

Causes of OBD2 P0141 Generic

A Generic DTC code P0141 may have one or more of the following problems:

  • The O2 heater circuit wiring system (Oxygen Sensor) may be shorted.
  • The resistance of the Oxygen Sensor (O2) heating element may be high.
  • There may be an internal short circuit in the Oxygen Sensor heating element.

Possible solutions of the DTC code P0141 Generic

To fix DTC code P0141 OBD2 you can review the following components:

  • Examine the cable connectors and verify that the resistor is not short-circuited, repair or replace if necessary.
  • Replaces the Oxygen Sensor (O2).

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