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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 744 (Body Control System) >> Diagnostic Information and Procedures >> DTC U2000, U2001, U2002, U2003, U2004, U2005, U2006, U2007: Serial Data >> Conditions For Setting the DTC >> U2004

Conditions For Setting the DTC: U2004

WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

U2004 is set, in the BCM, when it detects that the SPI serial data "A" circuit, is less than 1.2 v for greater than 5 seconds.

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