{"nhtsa_id":10075945,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-07-07","date":"2012-11-27","document_id":"T-SB-0230-12","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Some 2005 - 2009 model year 4Runner, 2006 - 2007 model year Land Cruiser, 2005 - 2007 model year Sequoia, and 2005 - 2006 model year Tundra vehicles equipped with the 2UZ-FE (4.7 L) engine may exhibit a MIL \"ON\" condition for the following Diagnostic Trouble Codes (DTCs): • P0412 - Secondary Air Injection System Switching Valve \"A\" Circuit • P0418 - Secondary Air Injection System Relay \"A\" Circuit • P1440/P1443 - Secondary Air Injection System Control Valve Circuit Bank 1 I Bank 2 • P1441/P1444 - Secondary Air Injection System Switching Valve No. 2 Bank 1 I Bank 2 Stuck Open • P2440 - Secondary Air Injection System Switching Valve Stuck Open Bank 1 • P1442/P1445 - Secondary Air Injection System Switching Valve No. 2 Bank 1 I Bank 2 Stuck Close • P2441 - Secondary Air Injection System Switching Valve Stuck Close Bank 1 • P2445 - Secondary Air Injection System Pump Stuck Off Bank 1 This condition may be caused by debris passing through the air injection pump assembly and contaminating various components in the system. Use the following procedure to address this condition.","document":null,"url":"https://open.wenmarpro.com/bulletins/10075945","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P0412","P0418","P1440","P1441","P1442","P1443","P1444","P1445","P2440","P2441","P2445"],"topics":[],"vehicles":[{"make":"TOYOTA","model":"4RUNNER","year_from":2005,"year_to":2007,"match":"exact","vehicle_ids":["2005_toyota_4runner","2006_toyota_4runner","2007_toyota_4runner"]},{"make":"TOYOTA","model":"LAND CRUISER","year_from":2006,"year_to":2007,"match":"exact","vehicle_ids":["2006_toyota_land-cruiser","2007_toyota_land-cruiser"]},{"make":"TOYOTA","model":"SEQUOIA","year_from":2005,"year_to":2007,"match":"exact","vehicle_ids":["2005_toyota_sequoia","2006_toyota_sequoia","2007_toyota_sequoia"]},{"make":"TOYOTA","model":"TUNDRA","year_from":2005,"year_to":2006,"match":"exact","vehicle_ids":["2005_toyota_tundra","2006_toyota_tundra"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}