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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1573 (Data Link Communications System) >> Diagnostic Information and Procedures >> DTC U1001 To U1254: Module U1XXX Communication >> Test Description >> U1001-U1254

Test Description: U1001-U1254

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: DTC U1001-U1254 - Diagnostic Chart (1 Of 2)
G01640262Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC U1001-U1254 - Diagnostic Chart (2 Of 2)
G01640263Courtesy of GENERAL MOTORS CORP.
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