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Last Modified: 9-16-2014 6.6 J Doc ID: RM000000WZ1177X Model Year: 2015 Model: Tundra Prod Date Range: [08/2014 - ] Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: MIL Circuit; 2015 MY Tundra [08/2014 - ] MIL Circuit DESCRIPTION The MIL (Malfunction Indicator Lamp) is used to indicate vehicle malfunction detections by the ECM. When the ignition switch is turned to ON, power is supplied to the MIL circuit, and the ECM provides the circuit ground which illuminates the MIL. The MIL operation can be checked visually: When the ignition switch is first turned to ON, the MIL should be illuminated and should then turn off when the engine is started. If the MIL remains illuminated or is not illuminated, conduct the following troubleshooting procedure using the Techstream. WIRING DIAGRAM INSPECTION PROCEDURE PROCEDURE 1. CHECK THAT MIL IS ILLUMINATED (a) Perform troubleshooting in accordance with the table below. Result 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: MIL Circuit; ... |