WEB 2007 Toyota Tundra 47L SR5 Customer Complaint: Codes P2432, P2433, P2437, and P2438
Introduction
Customers may experience an illuminated MIL (Malfunction Indicator Lamp) with DTCs P2432, P2433, P2437, and P2438 stored in the ECM/PCM.
Cause
The cause may be due to an intake air leak in the secondary air injection system (SAIS).
Solution
Inspect and make sure all of the vacuum lines associated with the secondary air injection system are connected properly. If all of the vacuum lines are connected properly and the codes continue to set, further diagnosis is required.
Note: Any vacuum lines that are cracked or broken should be replaced.
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