P0071
Ambient Air Temperature Sensor Implausible Signal
Climate ControlMINOR
Описание
Ambient Air Temperature Sensor (G17), Implausible Signal
Частые симптомы
- Unrealistic temperature readings
- Check Engine Light
- Possible climate system erratic behavior
- Incorrect engine cold start enrichment
- Temperature-related system malfunctions
Возможные причины
- Faulty ambient temperature sensor output
- Sensor signal interference
- Wiring issues causing signal corruption
- ECU signal processing fault
- Sensor calibration drift
Диагностика
- 1. Check ambient temperature sensor signal quality
- 2. Compare with realistic temperature expectations
- 3. Test for signal interference or noise
- 4. Inspect sensor wiring for issues
- 5. Verify ECU signal processing
Решения по ремонту
- Replace faulty ambient temperature sensor
- Repair signal wiring issues
- Add signal filtering if needed
- Update ECU software if processing faulty
- Reset climate system adaptations
Профилактика
- Protect sensor wiring from electrical interference
- Regular signal quality checks
- Address unrealistic temperature readings