P0032

Описание

Oxygen (Lambda) Sensor B1 S1: Heating Circuit, Signal too High

Частые симптомы

• Possible O2 sensor overheating
• Check Engine Light
• Potential sensor damage
• Erratic fuel control
• Possible blown heater fuse

Возможные причины

• Short to power in heater circuit
• Failed O2 sensor internal short
• ECU driver circuit malfunction
• Wiring harness short to 12V
• Aftermarket wiring interference

Диагностика

1. 1. Test heater circuit for shorts to power
2. 2. Check O2 sensor heater resistance
3. 3. Inspect wiring harness for damage
4. 4. Test ECU heater control output
5. 5. Check for aftermarket modifications

Решения по ремонту

• Repair shorted heater wiring
• Replace faulty oxygen sensor
• Remove interfering aftermarket components
• Replace ECU if driver circuit failed
• Reset fuel system adaptations

Профилактика

• Professional installation of aftermarket sensors
• Regular wiring inspection
• Avoid splicing into factory O2 sensor wiring