garajizOBD-II code · manufacturer-specific
P1031
HO2S Heater Current Monitor Control Circuit Sensors 1
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Minor (2/5)
- Can I keep driving?
- Usually safe to drive
What does P1031 mean?
P1031 is defined as “HO2S Heater Current Monitor Control Circuit Sensors 1”.
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.
- Buick, Cadillac, Chevrolet, Chrysler, GM, GMC, Oldsmobile, Pontiac, Saturn: HO2S Heater Current Monitor Control Circuit Sensors 1
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This page is general information; an exact diagnosis needs measurements and a technician’s check.