OBD Guide

P00C1

Turbocharger/Supercharger Bypass Valve B Control Circuit Low

P00C1 is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Bypass Valve B Control Circuit Low. Common causes: open or short circuit in wiring harness, bypass valve solenoid malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Reduced engine power
  • Unstable operation of the turbocharger
  • Check Engine light comes on
  • Dips during acceleration

Causes

  • Open or short circuit in wiring harness
  • Bypass valve solenoid malfunction
  • Mechanical damage to the valve
  • Control circuit power problems
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the integrity of the wiring harness
  2. Check bypass valve solenoid resistance
  3. Check the mechanical condition of the valve
  4. Check control circuit power supply
  5. If necessary, replace faulty components

Related codes

Error P00C1 by Vehicle Brand

FAQ

What does the P00C1 code mean?

P00C1 is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Bypass Valve B Control Circuit Low

What causes a P00C1 error code?

The most common causes of P00C1 include: Open or short circuit in wiring harness; Bypass valve solenoid malfunction; Mechanical damage to the valve; Control circuit power problems.

How do I fix a P00C1 diagnostic trouble code?

To fix P00C1: Check the integrity of the wiring harness. Check bypass valve solenoid resistance. Check the mechanical condition of the valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P00C1?

Limited driving only, diagnose soon

How much does it cost to fix P00C1?

The estimated repair cost for P00C1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat