B1328
DTC B1328
Circuit Description
The control modules on this vehicle monitor system voltage through the battery positive voltage circuits. Damage to components, and incorrect data can occur when the voltage is out of range. This vehicle has multiple modules that will set this DTC. For more information on which modules refer to Diagnostic Trouble Code (DTC) List - Vehicle.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B1328 Device Power 1 Circuit High
Conditions for Running the DTC
This DTC shall run only if the module has power, ground and the ignition is not in START mode. This DTC shall execute regardless of the battery voltage.
Conditions for Setting the DTC
This DTC shall be set as current when the voltage raises above 16.0 volts for 1.2 seconds.
Action Taken When the DTC Sets
* A message shall be sent out to notify all other modules of high battery voltage.
* The modules disable the setting of U codes and other DTCs.
Conditions for Clearing the DTC
* The DTC will clear current status when the voltage is less than 15.5 volts for 1.2 seconds.
* A history DTC will clear after 50 consecutive ignition cycles if the condition for the malfunction is no longer present.
* Use a scan tool.
Test
