Intake Manifold Tuning Valve Control Circuit/Open Bank 2

Where it lives

For P0663, the valve sits on the circuit this code reports. The description of P0663 puts it on bank 2.

Check these first

• An open in the bank 2 tuning valve control wire
• A failed tuning valve actuator on bank 2
• Corrosion at the bank 2 tuning valve connector
• A blown fuse feeding the bank 2 tuning valve
• A faulty PCM output

What to do next

1. Check the tuning valve fuse on bank 2
2. Inspect the bank 2 tuning valve connector and control wire
3. Measure the control circuit voltage with the key on
4. Test the tuning valve actuator resistance
5. Repair the open if the control wire has no power
6. Clear the code and retest

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