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2017
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Volt Premier
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Repair and Diagnosis (Single Page)
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Accessories & Equipment
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Communication Devices
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Data Communication System - DTC U1817 To DTC U3012 And Scan Tool Symptoms
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Diagnostic Information and Procedures
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DTC U1879: Drive Motor Control Module 2 Lost Communication with Engine Control Module
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Conditions for Running the DTC
Conditions for Running the DTC
The system voltage is greater than 9.5 V.
The vehicle power mode master requires serial data communication to occur from this specific device.