P0141: O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
Is your scanner showing P0141?
No worries. We'll show you what it means and how to deal with it.
P0141: O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
OVERVIEWWhat Does The P0141 Code Mean?
This code means that the heated circuit in the oxygen sensor on bank 1decreases time needed to enter closed loop. Sensor #2 would be the second sensor downstream from the engine.
As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0141.
P0141 wiring diagram
See also: P0135 (Bank 1, Sensor 1).
What Are The Symptoms Of The P0141 Code?
You will likely notice poor fuel economy the illumination of the Check Engine Light.
What Are The Potential Causes Of The P0141 Code?
A code P0141 may mean that one or more of the following has happened:
- Open or short to ground in the wiring harness
- O2 heater circuit wiring high resistance
- O2 heater element resistance is high
- Internal short or open in the heater element
Note: Typically a failed catalytic converter does not cause this code. You’re more likely to see a P0420 code for a failed converter.
How Can You Fix The P0141 Code?
- Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
- Repair short or open or high resistance in wiring harness or harness connectors
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Check This Video For Reference
P0141 Infographic - 1 Minute Summary
