OBD Guide
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P0035

Turbocharger/Supercharger Bypass Valve A Control Circuit High

P0035 is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Bypass Valve A Control Circuit High. Common causes: short circuit in valve control circuit wiring, bypass valve actuator malfunction. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

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

P0034P0036P0045P0046P0047P0048P0299P0234

Error P0035 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0035 code mean?

P0035 is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Bypass Valve A Control Circuit High

What causes a P0035 error code?

The most common causes of P0035 include: Short circuit in valve control circuit wiring; Bypass valve actuator malfunction; Damage to connectors or contacts; Sticking or broken bypass valve mechanism.

How do I fix a P0035 diagnostic trouble code?

To fix P0035: Read all error codes using a diagnostic scanner. Visually inspect the valve control circuit wiring and connectors. Check the resistance of the bypass valve actuator with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0035?

Limited driving only, diagnose soon

How much does it cost to fix P0035?

The estimated repair cost for P0035 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat