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Home >> Cadillac >> 2014 >> Escalade ESV Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U1817: Lost Communication With Hybrid Powertrain Control Module on Bus "B" >> Diagnostic Fault Information
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Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
PTLAN + (circuit 6105) U0074* U1817* **, U189A in HPCM, U182A in SDGM U0074* -
PTLAN - (circuit 6106) U0074* U1817* **, U189A in HPCM, U182A in SDGM U0074* -
* Other modules/DTCs will set with this fault.
** This DTC may set in the ECM or the SDGM.
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