What does code P0141 mean and is it safe to drive?
P0141: O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2). Here’s what it means, what usually causes it, what repairs typically cost, and how urgent it is to keep driving.
PowertrainGenerally safe to drive
Repair cost
$80–$300
System
Powertrain
Urgency
low
What this code means
Heater circuit fault for the downstream O2 sensor, bank 1. Same idea as P0135.
Common causes
- Failed downstream O2 sensor
- Wiring issue
Symptoms
- Check Engine Light
Typical fixes
- Replace bank 1 sensor 2 O2 sensor
- Repair wiring
Repair cost range
Repairs for P0141 often fall between $80 and $300, depending on the cause and your vehicle.