P0035

Symptoms

• Reduced engine power
• Unstable idle speed
• Increased fuel consumption
• Black smoke from the exhaust pipe
• Whistling or hissing sounds from the turbocharger
• Check Engine Light Illuminates
• Jerks during acceleration

Causes

• Short circuit in valve control circuit wiring
• Bypass valve actuator malfunction
• Damage to connectors or contacts
• Sticking or broken bypass valve mechanism
• ECM (engine control module) malfunction
• Broken or oxidized wires
• Oil or dirt getting into electrical connections

How to Fix

1. Read all error codes using a diagnostic scanner
2. Visually inspect the valve control circuit wiring and connectors
3. Check the resistance of the bypass valve actuator with a multimeter
4. Measure the supply voltage at the actuator connector
5. Check the integrity of the wires from the ECM to the actuator
6. Clean or replace damaged connectors
7. If necessary, replace the bypass valve actuator
8. Check the mechanical operation of the valve for sticking
9. Clear error memory and test drive
10. Rescan the system to confirm that the error has been resolved

Related codes

Error P0035 by Vehicle Brand