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Component Testing

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the S70R Steering Wheel Controls Switch - Right.
  2. Test the resistance between the signal terminal 2 and the reference voltage terminal 1 while pressing the appropriate steering wheel controls switch button listed below:
    • If not the specified value 

      Replace the S70R Steering Wheel Controls Switch - Right.

    • Go to next step: If the specified value 
  3. All OK
Function Switch Minimum Resistance Value Maximum Resistance Value
Hang Up-Mute 5.0 kΩ 5.5 kΩ
Telephone Switch 3.6 kΩ 4 kΩ
Source Switch 2.8 kΩ 3.1 kΩ
Arrow Down 2.2 kΩ 2.6 kΩ
Arrow Up 1.7 kΩ 2 kΩ
Volume Down 1.4 kΩ 1.6 kΩ
Volume Up 1.1 kΩ 1.3 kΩ
No Switch Pressed Infinite Infinite