Component Testing
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2017 GMC Yukon XL, 2017 GMC Yukon, 2017 Chevrolet Tahoe, 2017 Chevrolet Suburban, and 2017 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the X1 harness connector at the S48A Multifunction Switch - Instrument Panel.
- Test for infinite resistance between the signal circuit terminal 2 and the ground terminal 8 with the switch in the open position.
- If less than infinite resistance
Replace the S48A Multifunction Switch - Instrument Panel.
- If infinite resistance
- If less than infinite resistance
- Test for less than 2 Ω between the signal terminal 2 and the ground terminal 8 with the switch in the closed position.
- If 2 Ω or greater
Replace the S48A Multifunction Switch - Instrument Panel.
- If less than 2 Ω
- If 2 Ω or greater
- All OK.