Error code
OBD2 P2247
OBD2P2247
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
O2 Sensor Reference Voltage Circuit/Open.
Severity
moderateCan drive, but fuel efficiency and emissions may be affected.
Summary
P2247 indicates an issue with the reference voltage circuit of the heated oxygen sensor (HO2S) on bank 2, which is likely causing a lack of signal or open circuit.
Common Causes
- Wiring issues related to HO28
- ECM (Engine Control Module) problems
Fixes
FAQ
What does P2247 mean?
P2247 indicates a problem with the reference voltage circuit of the heated oxygen sensor (HO2S) on bank 2, which can result in an open circuit or no signal.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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