B1325
DTC B1325
Circuit Description
The control modules on this vehicle monitor the battery voltage through the battery positive voltage circuits. This vehicle has multiple modules that will set this DTC. For more information on which modules, Refer to Diagnostic Trouble Code (DTC) List - Vehicle. Diagnostic Trouble Code Descriptions
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B1325 Device Power Circuit
This vehicle has DTCs which include DTC Symptoms. For more information on DTC Symptoms, Refer to Diagnostic Trouble Code Descriptions Diagnostic Trouble Code Descriptions
Conditions for Running the DTC
The voltage supplied to the control modules are in the range of 7-26 volts.
Conditions for Setting the DTC
DTC B1325 03
* The control module detects a system voltage below the calibrated value usually 9 volts.
* The above condition is present at least 5 seconds.
DTC B1325 07
* The control module detects a system voltage above the calibrated value usually 18 volts.
* The above condition is present at least 5 seconds.
Action Taken When the DTC Sets
* The control module immediately disables all outputs when an out of range voltage condition has been detected, with the exception of GMLAN and Run/Crank relay that are disabled after a 3 minute delay.
* The setting of other DTCs is inhibited.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.
Test
