Hybrid/EV Battery Pack Coolant Control Valve A Control Circuit/Open

Where it lives

For P0CDF, the valve sits on the circuit this code reports. The description of P0CDF reports the valve as open.

Check these first

• An open in the coolant control valve A control circuit
• A failed valve A actuator motor or solenoid
• Mechanical binding in the valve A linkage
• A broken valve A return spring
• A valve A that is not getting its command

What to do next

1. Command coolant control valve A with a scan tool
2. Listen and watch for the valve A to move
3. Test the valve A control circuit for an open
4. Inspect the valve A linkage for binding
5. Replace valve A if it does not move
6. Clear the code and retest

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