P0061

Описание

HO2S Bank-2 Sensor-3 Heater Resistance

Частые симптомы

• Extended bank 2 secondary O2 sensor warm-up
• Check Engine Light
• Possible bank 2 secondary emission function delays
• Delayed bank 2 full emission system operation
• Reduced bank 2 secondary emission performance

Возможные причины

• Bank 2 secondary heater element resistance out of specification
• Aging bank 2 secondary O2 sensor heater
• Partial bank 2 secondary heater element failure
• Corroded bank 2 secondary sensor connections
• ECU bank 2 secondary resistance measurement fault

Диагностика

1. 1. Measure bank 2 secondary O2 sensor heater resistance
2. 2. Compare with manufacturer specifications
3. 3. Check bank 2 secondary connections for corrosion
4. 4. Test bank 2 secondary heater circuit operation
5. 5. Verify ECU bank 2 secondary resistance measurement

Решения по ремонту

• Replace bank 2 secondary oxygen sensor with bad resistance
• Clean or repair bank 2 secondary connections
• Replace faulty bank 2 secondary wiring
• Replace ECU if bank 2 secondary measurement faulty
• Reset complete multi-bank emission system

Профилактика

• Use correct secondary O2 sensors for both banks
• Protect bank 2 secondary sensor wiring
• Regular complete multi-bank emission system checks