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P0418 Diagnostic Trouble Code Discussion for August 2019

Secondary AIR System Pump Relay Control Circuit Malfunction (Bank 1)


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Trouble Ticket Help Requests for DTC P0418
Help Request Posted
2005 Toyota 4Runner Limited 4.7L Limp home mode VIN: JTEBT17R35
P0418: Secondary Air Injection System Malfunction. ... & P2445 which we have seen many times. The air pump was lock up. Replace air pump & air control valve, remove both back valves, disassemble & clean out. After 3 cold start ups will set the same codes. Test inputs to the air pump controller ...
August 16, 2019