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Park Brake Switch Malfunction

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the park brake switch.
  2. Test for infinite resistance between the signal terminal A and ground with the park brake released.
    • If less than the specified value, replace the park brake switch.
  3. Test for less than 1 ohm between the signal terminal A and ground with the park brake applied.
    • If greater than the specified range, replace the park brake switch.
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