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Home >> Toyota >> 2018 >> Highlander XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (SFI System [1AR-FE] - Diagnostics & Circuit Tests - (Except Hybrid)) >> SFI System >> Circuit Tests >> MIL Circuit [11/2016 - ] >> Description

MIL Circuit [11/2016 - ]: Description

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The Malfunction Indicator Lamp (MIL) is used to indicate vehicle malfunctions detected by the ECM.

The MIL operation can be checked visually. When the ignition switch is turned to ON, the MIL should be illuminated and should then turn off after the engine is started. If the MIL remains illuminated or is not illuminated, conduct the following troubleshooting procedure using the Techstream.

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