Index Subaru Subaru Impreza 3 / Impreza WRX / Impreza WRX STI - service repair manual 2008-2014 year
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EN(H4DOTC)(diag)-452 Diagnostic Procedure with Diagnostic Trouble Code (DTC) ENGINE (DIAGNOSTICS) FL:DTC P2441 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK CLOSED (BANK1) NOTE: For the diagnostic procedure, refer to DTC P2440. <Ref. to EN(H4DOTC)(diag)-446, DTC P2440 SECOND- ARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN (BANK1), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> 17 CHECK SECONDARY AIR COMBINATION Connector & terminal (F9) No. 7 (+) — Chassis ground (–): Is the voltage 10 V or more? Repair the open or 18 CHECK HARNESS BETWEEN ECM AND Connector & terminal (B135) No. 20 — (F9) No. 9: Is the resistance less than 1 Ω? Go to step Repair the harness In this case, repair connector and secondary air 19 CHECK HARNESS BETWEEN ECM AND Connector & terminal (F9) No. 9 — Chassis ground: Is the resistance 1 MΩ or Repair the poor Repair the short Step Check Yes No |