Component Testing
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2020 GMC Yukon XL, 2020 GMC Yukon, 2020 Chevrolet Tahoe, 2020 Chevrolet Suburban, and 2020 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the appropriate S48 Multifunction Switch.
- Test for infinite resistance between the signal terminal and the ground terminal with the switch in the open position.
- If less than infinite resistance
Replace the appropriate S48 Multifunction Switch.
- Go to next step: If infinite resistance
- If less than infinite resistance
- Test for less than 2 Ω between the signal terminal and the ground terminal with the switch in the closed position.
- If 2 Ω or greater
Replace the appropriate S48 Multifunction Switch.
- Go to next step: If less than 2 Ω
- If 2 Ω or greater
- All OK.