Subaru IMPREZA GD 2007 Series Manual page 1597

asieps_tobira_IM_US.book 266 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK SECONDARY AIR COMBINATION
VALVE.
1) Remove the secondary air combination
valve. <Ref. to EC(H4DOTC)-10, Secondary Air
Combination Valve.>
2) Blow in air from the secondary air combina-
tion valve air inlet, and check whether there are
leaks at the pipe connections.
Check
Are there air leaks from the pipe
connections?
EN(STI)(diag)-266
Yes No
Replace the sec- Even if the malfunc-
ondary air combi- tion indicator light
nation valve on the illuminates, the cir-
side with the air cuit has returned to
leak. <Ref. to a normal condition
EC(H4DOTC)-10, at this time. Repro-
Secondary Air duce the fault con-
Combination dition, and
Valve.> reperform the
check.
NOTE:
In this case, there
may be a tempo-
rary connector
contact failure.