C0533

Symptoms

• Engine performance deterioration
• Increased fuel consumption
• Unstable idle
• Engine transition to emergency mode
• Check engine light comes on

Causes

• Open or shorted wiring harness
• Faulty sensor associated with circuit A
• Problems with the engine control unit (ECU)
• Corrosion or poor contact in connectors
• Malfunction of the solenoid valve (solenoid)

How to Fix

1. Check wiring harness for damage
2. Check connectors and contacts for corrosion and connection reliability
3. Check sensors associated with circuit A (for example, mass air flow sensor, MAP, position sensors)
4. Check the solenoid valves (solenoids) in the system
5. Test the engine control unit (ECU)
6. Replace faulty components and clear error

Related codes

Error C0533 by Vehicle Brand