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Home >> Toyota >> 2009 >> Matrix Base, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Transfer Case MF1A/4WD/AWD) >> Active Torque Control 4WD System >> 4WD Warning Light Remains ON >> Description
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4WD Warning Light Remains ON: Description

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The 4WD control ECU is connected to the combination meter via the CAN communication system.

If the 4WD control ECU stores any DTCs which are related to the active torque control 4WD system, the 4WD warning light comes on in the combination meter.