Error code
OBD2 P0164
OBD2P0164
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
O2 Sensor Circuit High Voltage.
Severity
moderateCan drive, but emissions may be affected.
Summary
P0164 indicates high voltage in the heated oxygen sensor circuit for bank 2 sensor 3, which is likely due to issues with the sensor or its wiring.
Common Causes
- Faulty heated oxygen sensor (HO2S)
- Wiring short to positive
- Physical damage to wire harnesses or connectors
Diagnosis
- Check fuses and wiring for any obvious issues.
- Inspect the oxygen sensors for damage.
- Verify proper seating of connectors and check for bent or broken pins.
- Use a multimeter to test continuity on the sensor circuit lines.
- Replace the sensor if internal resistance is not within expected range.
Fixes
- Replace the faulty heated oxygen sensor (HO2S).
FAQ
What does P0164 mean?
P0164 indicates high voltage in the heated oxygen sensor circuit for bank 2 sensor 3.
How do I fix P0164?
Fixing P0164 typically involves replacing the faulty heated oxygen sensor or repairing damaged wiring and connectors.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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