P0071

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. 1. Check ambient temperature sensor signal quality
2. 2. Compare with realistic temperature expectations
3. 3. Test for signal interference or noise
4. 4. Inspect sensor wiring for issues
5. 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