P1167 Primary HO2S No 1 Heater System
What does P1167 mean on a Honda?
P1167 — Primary HO2S No 1 Heater System. This Honda-enhanced code applies to Civic, Accord, CR-V, Element, Odyssey.
Common causes of P1167
- Burned-out A/F sensor heater element
- Blown heater circuit fuse from aged wiring
- Corroded heater power or ground terminals
- Rodent-chewed harness near the exhaust
How to fix P1167
- Test the heater fuse and relay first on the affected bank
- Measure heater resistance at the sensor connector against Honda spec
- Trace heater power and ground wiring for opens or corrosion
- Replace the sensor with an OEM-grade heater assembly if the element is open
- Clear codes and confirm heater current draw on a cold start