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Home › Cadillac › 2012 › Escalade EXT › Repair and Diagnosis › Engine Performance › System › Data Communications System › Diagnostic Information and Procedures › DTC U1826 › Diagnostic Aids

Diagnostic Aids

Use the DTC Descriptor list above to determine the control module which is not communicating.
If there are multiple non-communicating control modules choose the one closest to the EBCM.