Toyota Tundra Service Manual: Parts Location

On-vehicle Inspection

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Toyota Tundra Service Manual > Automatic Transmission System: Check Mode Procedure
CHECK MODE PROCEDURE 1. DESCRIPTION (a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, DTCs are stored with 1-trip detection logic. 2. CHECK MO ...