P00C2

Symptoms

• Check Engine light is on, engine emergency mode is possible
• Significant loss of power and traction during acceleration
• The turbine “does not move” - the boost pressure is low
• Or, on the contrary, signs of overcharging: detonation, jerking during acceleration
• Increased fuel consumption and exhaust smoke

Causes

• Short circuit of the bypass valve control wire to power (+12V)
• Boost pressure control solenoid valve internal failure
• Damage to the connector or wiring in the turbocharger area (high temperatures)
• Mechanical jamming of the bypass valve
• Engine ECU malfunction

How to Fix

1. Read codes and real-time boost pressure data
2. Inspect control valve wiring and connector - pay particular attention to thermal insulation damage
3. Disconnect the valve connector and measure the voltage on the signal wire (should not be 12V at rest)
4. Measure the resistance of the valve winding (the norm is usually 20–30 Ohms)
5. Check the mechanical movement of the bypass valve and its pneumatic actuator
6. If the wiring is correct, replace the boost pressure control valve (wastegate solenoid)

Related codes

Error P00C2 by Vehicle Brand