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Home >> GMC >> 2013 >> Yukon Denali, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC B137A >> Diagnostic Fault Information
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Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Wake Up Signal B137A 06, *U1812 *U1812 B137A 01, *U1813 -
* Sets in the HPCM
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