B1516
DTC B1516
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Diagnostic Procedure Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B1516
- Battery Current Sensor Performance
Circuit/System Description
The generator battery control module (GBCM) monitors its internal battery current sensor for many charging system operations. If the value of the battery current sensor is out of range, DTC B1516 will set.
Conditions for Running the DTC
The engine is running.
Conditions for Setting the DTC
The duty cycle of the internal battery current sensor is less than 2 percent duty cycle or greater than 98 percent duty cycle for greater than 240 seconds.
Action Taken When the DTC Sets
The regulated voltage control (RVC) is disabled.
Conditions for Clearing the DTC
The duty cycle of the internal battery current sensor is 3-97 percent duty cycle.
Reference Information
Schematic Reference
Starting and Charging Schematics ([1][2]Electrical Diagrams)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
Charging System Description and Operation (Description and Operation)
Electrical Information Reference
* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
Replace the GBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
Control Module References (Programming and Relearning) for GBCM replacement, setup, and programming.