Vehicle Does Not Decelerate Or Accelerate Accordingly When The Set Or Resume Switch Is Pressed

Diagnostic procedure 

• 1. Test the ACC combination switch - Refer to:

  ACC Combination Switch - Removal and Installation, Test (2016 2017 2018) or

  ACC Combination Switch - Removal and Installation, Test (2019 2020 2021) .

Also check for

An open in the wire.