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Home >> Hummer >> 2007 >> H3 Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Computer/Integrating Systems) >> Diagnostic Information and Procedures >> DTC B1009 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

The electrically erasable programmable read-only memory (EEPROM) check sum error detection is handled inside the control module. No external circuits are involved.