Subaru Legacy 2004 Service Manual page 963

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
BK:DTC P1092 TUMBLE GENERATED VALVE SYSTEM 2 (VALVE OPEN)
DTC DETECTING CONDITION:
Immediately at fault recognition
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO 2.5)(diag)-
41, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.5)(diag)-34, Inspection Mode.>.
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
2 CHECK TUMBLE GENERATOR VALVE RH.
1) Remove the tumble generator valve assem-
bly.
2) Check the tumble generator valve body.
Check
Is any other DTC displayed?
Does the tumble generator
valve move smoothly? (No dirt
or foreign materials clogged)
EN(H4SO 2.5)(diag)-204
Yes
Inspect the rele- Go to step 2.
vant DTC using
"List of Diagnostic
Trouble Code
(DTC)". <Ref. to
EN(H4SO
2.5)(diag)-70, List
of Diagnostic Trou-
ble Code (DTC).>
Replace the tum- Clean the tumble
ble generator valve generator valve.
assembly. <Ref. to
FU(H4SO 2.5)-28,
Tumble Generator
Valve Assembly.>
No