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Home >> Cadillac >> 2014 >> Escalade ESV Luxury, RWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Data Communication System >> Diagnostic Information and Procedures >> DTC U189A: DC to DC Converter Control Module A Lost Communication With Hybrid Powertrain Control Module >> Circuit/System Verification
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Circuit/System Verification

With a scan tool, ensure the following DTCs are not present in the modules as follows:

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