When Monitored

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This diagnostic runs continuously when the following conditions are met:

Ignition on.
System voltage message received over the Controller Area Network (CAN) is between 10.0 and 16.0 volts.
If system voltage over CAN is not available, Electronic Shift Module (ESM) sensed voltage is used and must be between 6.0 and 16.0 volts.
No CAN C Bus Off Diagnostic Trouble Code (DTCs) set.
The ESM is programmed.
The Transmission Control Module (TCM) is available on the CAN bus.