U0616

Symptoms

• Check Engine Light Is On
• The engine may overheat
• Unstable engine operation
• Reduced engine performance
• Increased fuel consumption

Causes

• Engine coolant bypass valve B malfunction
• Problems with wiring or connectors
• Engine control module (ECU) malfunction
• Open or short circuit in the communication circuit
• Problems with the CAN bus

How to Fix

1. Check the engine coolant bypass valve B wiring and connectors for damage.
2. Check engine coolant bypass valve B for proper operation.
3. Check the engine control module (ECU) for problems.
4. Check the CAN bus for breaks or short circuits.
5. Replace faulty components.

Related codes

Error U0616 by Vehicle Brand