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Home >> Dodge and Ram >> 2012 >> Charger SRT-8 >> Repair and Diagnosis >> Engine Performance >> System >> Vehicle System Interface Module (VSIM) Module - Electrical Diagnostics >> DTC Troubleshooting >> U0164-Lost Communication With HVAC Control Module >> When Monitored:

When Monitored:

Continuously when the ignition is on.

Battery voltage between 10 and 16 volts.