P004C

Описание

Turbocharger / Supercharger Boost Control 'B', Signal too Low

Частые симптомы

• Secondary turbo reduced capability
• Poor twin-turbo response
• Check Engine Light
• Possible secondary boost limiting
• Reduced twin-turbo power

Возможные причины

• Short to ground in secondary boost control circuit
• Failed secondary boost control solenoid
• Low system voltage to secondary system
• Corroded secondary ground connections
• ECU secondary driver circuit issue

Диагностика

1. 1. Check battery and charging system
2. 2. Test for shorts to ground in secondary circuit
3. 3. Inspect secondary boost control solenoid
4. 4. Check secondary ground connections
5. 5. Test ECU secondary boost output

Решения по ремонту

• Repair shorted secondary boost wiring
• Replace faulty secondary boost solenoid
• Charge or replace battery if needed
• Clean and tighten secondary grounds
• Replace ECU if secondary driver failed

Профилактика

• Maintain twin-turbo electrical system health
• Protect secondary turbo wiring
• Regular twin-turbo electrical checks