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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> Engine Performance >> System >> Data Communications System >> Diagnostic Information and Procedures >> DTC U1813 >> Diagnostic Fault Information
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Wake Up Signal U1812, *B137A 06 U1812 U1813, *B137A 01 -
* Sets in the SDG module. No crank, no start. Battery pack contactors are open. drive motor generator battery control module and SDG module will both be inoperative