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Preliminary Inspection

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2000 GMC Yukon XL, 2000 GMC Yukon, 2000 GMC Sierra, 2000 Chevrolet Tahoe, and 2000 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check all fuses. Ensure all connectors in system are mated correctly. Using a scan tool, check for engine performance-related DTCs. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
  2. Check for broken or partially broken wires. Check for correct installation of aftermarket electronic equipment. Ensure all grounds are clean and tight.
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