P0063

Описание

Heater Oxygen Sensor-3 Bank 2, Signal too Low

Частые симптомы

• Slow bank 2 secondary O2 sensor activation
• Delayed bank 2 secondary emission functions
• Check Engine Light
• Possible bank 2 secondary system performance issues
• Extended warm-up for full bank 2 emission control

Возможные причины

• Short to ground in bank 2 secondary heater circuit
• Failed bank 2 secondary O2 sensor heating element
• Low system voltage to bank 2 secondary sensor
• Corroded bank 2 secondary ground connections
• ECU bank 2 secondary driver circuit issue

Диагностика

1. 1. Check battery and charging system voltage
2. 2. Test for shorts to ground in bank 2 secondary circuit
3. 3. Measure bank 2 secondary heater element resistance
4. 4. Inspect bank 2 secondary ground connections
5. 5. Check ECU bank 2 secondary heater control

Решения по ремонту

• Repair shorted bank 2 secondary heater wiring
• Replace faulty bank 2 secondary oxygen sensor
• Charge or replace battery if needed
• Clean and tighten bank 2 secondary grounds
• Replace ECU if bank 2 secondary driver failed

Профилактика

• Maintain bank 2 secondary sensor wiring integrity
• Protect bank 2 secondary wiring from road debris
• Regular bank 2 secondary system electrical checks