Diagnostic Procedure With ECU Cancel Code: 21

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Malfunction of EyeSight steering switch is detected.

Trouble symptom:

Cruise control cannot be set. (Cancelled immediately.)
Cruise control cannot be released.

Refer to 11 for diagnostic procedure Ref. to EYESIGHT (DIAGNOSTICS) (EXCEPT FOR HEV)>DIAGNOSTIC PROCEDURE WITH ECU CANCEL CODE>11 .