DTC P2004: TGV Control Stuck Open Bank 1: Notes

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DTC detecting condition:

Immediately at fault recognition

NOTE: After the faulty parts are repaired or replaced, perform the final check in Basic Diagnostic Procedure. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .

CHECK DTC .
1. Turn the ignition switch to ON.
2. Using the Subaru Select Monitor or a general scan tool, read the DTC of [Engine]. Ref. to COMMON(DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .
  Is DTC other than P2004 displayed? (Current malfunction)
  
  Yes
  
  Check the appropriate DTC using the "Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Diagnostic Trouble Code (DTC)>LIST .
  
  No
  
  Go to 2 .
CHECK TUMBLE GENERATOR VALVE RH .
1. Remove the intake manifold assembly. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>INTAKE MANIFOLD ASSEMBLY>REMOVAL .
2. Check the tumble generator valve.
  Is there any dirt or clogging with foreign objects in the tumble generator valve?
  
  Yes
  
  Clean the tumble generator valve.
  
  No
  
  Replace the tumble generator valve RH. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>TUMBLE GENERATOR VALVE .
  
  NOTE: The tumble generator valve cannot be disassembled.