What does code P1168 mean?

Q: What does code P1168 mean?

HO2S11 Label Circuit Low Voltage Fault Bank 1 Sensor 1. P1168 on Honda vehicles means the powertrain control module has detected a low voltage condition on the signal circuit for the primary heated oxygen sensor, bank 1 sensor 1, which is the sensor before the catalytic converter. The computer monitors the sensor's output and sees a voltage that stays below the expected threshold for too long, indicating a lean signal or a circuit fault.

DTC codes / Honda codes / P1168

P1168 · HondaHO2S11 Label Circuit Low Voltage Fault Bank 1 Sensor 1

P1168 on Honda vehicles means the powertrain control module has detected a low voltage condition on the signal circuit for the primary heated oxygen sensor, bank 1 sensor 1, which is the sensor before the catalytic converter. The computer monitors the sensor's output and sees a voltage that stays below the expected threshold for too long, indicating a lean signal or a circuit fault.

SystemPowertrain

Code typeHonda specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

Guidance is general and written for Honda vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.