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Home >> Chevrolet >> 2017 >> Volt Premier >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Data Communication System - DTC U1817 To DTC U3012 And Scan Tool Symptoms >> Diagnostic Information and Procedures >> DTC U1860: Electric A/C Compressor Control Module Lost Communication with Hybrid Powertrain Control Module 2 >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U1860 U1860 - -
Ignition U1860 U1860 - -
Accessory Wake Up Serial Data U1814 U1860 - -
High Speed GMLAN Serial Data (+) U0073* U0073, U1860 U0073* -
High Speed GMLAN Serial Data (-) U0073* U0073, U1860 U0073* -
Ground - U1860 - -
* Scan Tool Does Not Communicate With High Speed GMLAN Device
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