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Fig. 135: Secondary Air Injection System Flow Diagram DTC TROUBLE DETECTION CONDITION CHART MONITOR DESCRIPTION DTC No. DTC Detection Condition Trouble Area P0412 After cold engine starts, all of following conditions met (1 a. Secondary Air Injection (AIR) system not operating (air pump OFF, Air Switching Valve [ASV] OFF) b. Diagnostic signal from Air Injection Control Driver (AID) 40% c. Battery voltage 8 V or more Open in air switching valve Air Injection Control Driver ASV ECM P0412 After cold engine starts, all of following conditions met (1 a. Secondary Air Injection (AIR) system operating (air pump ON, Air Switching Valve [ASV] ON) b. Diagnostic signal from Air Injection Control Driver (AID) 40% c. Battery voltage 8 V or more Short between ASV drive AID ASV ECM
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra
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