Description of defect

Due to an inappropriate O2 sensor failure assessment programme in the control unit (engine ECU) that controls the engine, there is a risk that the engine warning light may come on when the O2 sensor is not faulty.

Improvement details

Updeta the engine ECU programme.

Chassis number of target vehicles

Delica

CV4W-0400106～CV4W-0401213

Outlander

CW4W-5400106～CW4W-5401035

Automotive maintenance cannot determine the cause based on symptoms alone.
Be sure to perform diagnosis and inspection before determining the cause of the failure.