P0166 HONDA Alternator B Terminal Circuit Low Voltage
Possible causes – Faulty alternator– Alternator harness is open or shorter– Alternator poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Tag: P0166
P0166 O2 Sensor Circuit No Activity Detected Bank 2 Sensor 3
Possible causes – Faulty Heated Oxygen Sensor Bank 2 Sensor 3– Heated Oxygen Sensor Bank 2 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 2 Sensor 3 circuit poor electrical connection Tech notes Replacing the O2 Sensor