Body Control System Diagnosis

DTC B1327 Battery/Source Voltage Low:

Refer to Body Control Module Schematics: RIM Power and Grounding. Electrical Diagrams

CIRCUIT DESCRIPTION
Battery positive voltage (B+) is supplied to the Rear Integration Module (RIM) at connector C1 terminal A1, CKT 540 (ORN). The RIM monitors this voltage to determine if it is within a valid operating range.

CONDITIONS FOR SETTING DTC
The battery positive voltage (B+) level falls below 9 volts for approximately 1.2 seconds or more.

ACTION TAKEN WHEN THE DTC SETS
^ The RIM stores DTC B1327 in the module memory.
^ The module does not respond to any inputs when DTC B1327 is current.
^ No driver warning message will be displayed for this DTC.
^ The module will not set DTCs when DTC B1327 is current.

CONDITIONS FOR CLEARING DTC
^ A current DTC clears (status changes from current to history) if the battery positive voltage (B+) level rises above 9.5 volts for approximately 1.2 seconds.
^ A history DTC clears after 50 consecutive ignition cycles if the Conditions for setting DTC are no longer present.

DIAGNOSTIC AIDS
The module will not check for low battery positive voltage (B+) during and for 2 seconds following the engine CRANK mode.