P0035 GMC Code - Turbocharger Bypass Solenoid Valve Control Circuit High Voltage
Quick Answer
The dual scroll turbocharger incorporates a wastegate that is controlled by a pressure differential, which is determined by the Engine Control Module (ECM) using a PWM solenoid, to regulate the pressure ratio of the compressor. Common causes include Faulty Turbocharger Bypass Solenoid Valve, Turbocharger Bypass Solenoid Valve harness is open or shorted, Turbocharger Bypass Solenoid Valve circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0035 GMC indicates Turbocharger Bypass Solenoid Valve Control Circuit High Voltage.
- Common causes
- Common causes include Faulty Turbocharger Bypass Solenoid Valve, Turbocharger Bypass Solenoid Valve harness is open or shorted, Turbocharger Bypass Solenoid Valve circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0035 GMC Description
As engine load and RPM increase the turbocharger bypass solenoid parameter should remain commanded ON by the ECM. As soon as the throttle closes the turbocharger bypass solenoid parameter should be commanded OFF by the ECM, to allow the turbocharger bypass valve to open and allow the turbocharger air to recirculate, thereby preventing compressor surging.
What are the Possible Causes of the DTC P0035 GMC?
- Faulty Turbocharger Bypass Solenoid Valve
- Turbocharger Bypass Solenoid Valve harness is open or shorted
- Turbocharger Bypass Solenoid Valve circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0035 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0035 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0035 GMC Code
What does the OBDII code P0035 mean on a GMC?
P0035 indicates a high voltage issue in the Turbocharger Bypass Solenoid Valve Control Circuit, which is responsible for regulating boost pressure in the turbocharger system.
What are common symptoms of the P0035 code on a GMC vehicle?
Symptoms include reduced engine performance, poor acceleration, turbo lag, excessive exhaust smoke, and possibly an illuminated check engine light.
What causes the P0035 code on a GMC?
Common causes include a faulty turbo bypass solenoid valve, damaged wiring or connectors in the circuit, or a malfunctioning engine control module (ECM).
Can a P0035 code cause engine damage if ignored?
Yes, prolonged driving with this code can lead to engine stress, overheating, or damage to the turbocharger due to improper pressure regulation.
How do I diagnose the P0035 code on a GMC?
Start by inspecting the turbo bypass solenoid valve, wiring, and connectors for damage. Use a multimeter to check for proper voltage and resistance in the circuit.
Can I drive my GMC with a P0035 code?
It is not recommended to drive with this code, as it can lead to poor engine performance and potential damage to the turbocharger or engine components.
How do I fix the P0035 code on my GMC?
Repairs may involve replacing the turbo bypass solenoid valve, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.
How much does it cost to fix a P0035 code on a GMC?
Repair costs can range from $100 to $400, depending on whether the solenoid valve needs replacement or if wiring and ECM programming are required.
Can a dirty air filter cause the P0035 code?
While unlikely, a severely clogged air filter may contribute to turbocharger performance issues, but it’s not a direct cause of the P0035 code.
Does the P0035 code affect fuel economy?
Yes, this code can reduce fuel efficiency due to improper turbocharger operation and increased engine strain.
Discuss the causes and fixes for P0035 GMC OBDII Code
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