garajizOBD-II code · generic
P0052
HO2S Heater Control Circuit High
- System
- P0 — Powertrain (generic)
- Severity
- Minor (2/5)
- Can I keep driving?
- Usually safe to drive
What does P0052 mean?
P0052 is defined as “HO2S Heater Control Circuit High”.
You can usually keep driving, but have it checked soon so a small fault doesn’t become a bigger one.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Kia: HO2S 21 Hater Circuit High Input
- Volvo: HO2S Heater Control Circuit High Bank 2 Sensor 1
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This page is general information; an exact diagnosis needs measurements and a technician’s check.