Venza FWD L4-2.7L (1AR-FE) (2009)
Malfunction Indicator Lamp: Testing and Inspection
1AR-FE ENGINE CONTROL: SFI SYSTEM: MIL Circuit
MIL Circuit
DESCRIPTION
The MIL (Malfunction Indicator Lamp) is used to indicate vehicle malfunctions detected by the ECM. By turning the ignition switch 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. If
the MIL remains illuminated or is not illuminated, conduct the following troubleshooting procedure. If the ECM detects any trouble, the MIL
illuminates. At this time, the ECM records a DTC in the memory.
WIRING DIAGRAM