AutoCodes – Chevrolet – P0035 Chevrolet

P0035 Chevrolet 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 Chevrolet 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.

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Code Popularity 488

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 08, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
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Code P0035 Chevrolet Description

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. A compressor bypass valve also controlled by the ECM by utilizing a remotely mounted solenoid is integrated into the bypass valve to prevent compressor surging and damage from vibrations by opening during abrupt closed throttle conditions. When the valve is open during closed throttle deceleration conditions, the bypass valve allows the air to recirculate in the turbocharger and maintain compressor speed. Within a calibrated range during the closed throttle event, or upon a wide-open throttle command the valve will then close to optimize turbo response. The bypass valve solenoid has the following circuits: Ignition voltage and Turbocharger bypass valve solenoid control.
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.

OBDII Code P0035 Chevrolet - Turbocharger Bypass Solenoid Valve Control Circuit High Voltage - AutoCodes.com — P0035 Chevrolet Code - Turbocharger Bypass Solenoid Valve Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0035 Chevrolet?

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 Chevrolet?

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 Chevrolet 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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Need more information on how to fix the P0035 Chevrolet code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0035 Chevrolet Code

What does the OBDII code P0035 mean for a Chevrolet?

P0035 indicates a high voltage issue in the Turbocharger Bypass Solenoid Valve Control Circuit, which can affect turbocharger operation.

What are the common symptoms of code P0035 in a Chevrolet?

Symptoms may include reduced engine power, poor acceleration, excessive turbo lag, or the Check Engine Light turning on.

What causes the P0035 code in a Chevrolet?

Common causes include a faulty turbo bypass solenoid valve, damaged wiring or connectors, or issues with the engine control module (ECM).

Can I drive my Chevrolet with the P0035 code?

Driving with this code is not recommended, as it can lead to poor performance, increased emissions, or potential damage to the turbocharger system.

How do I diagnose the P0035 code in a Chevrolet?

Start by inspecting the turbo bypass solenoid valve, wiring, and connectors for damage. Use a multimeter to check for proper voltage and continuity in the circuit.

What tools are needed to fix the P0035 code?

You’ll typically need an OBDII scanner, multimeter, basic hand tools, and possibly a wiring diagram for your specific Chevrolet model.

How do you fix the P0035 code on a Chevrolet?

Repairs may include replacing the turbo bypass solenoid valve, repairing or replacing damaged wiring, or reprogramming/updating the ECM if necessary.

How much does it cost to fix the P0035 code on a Chevrolet?

Repair costs can vary widely, ranging from $50 to $300, depending on whether it’s just a wiring repair or the solenoid valve needs replacement.

Can a dirty turbocharger cause the P0035 code?

A dirty or malfunctioning turbocharger is not a direct cause of this code, but related issues like a stuck bypass valve could contribute to the problem.

How can I prevent the P0035 code from recurring?

Regular maintenance, such as inspecting wiring and ensuring the turbocharger system components are clean and functioning properly, can help prevent this code.