B1328

Wiring Diagram:

Circuit Description
The sensing and diagnostic module (SDM) learns the source ID of the battery voltage report message. The SDM monitors this message every 300 milliseconds.

Conditions for Running the DTC
The SDM monitors the Class 2 serial data line during CONTINUOUS MONITORING for the battery voltage report.

Conditions for Setting the DTC
The battery voltage report indicates the battery voltage is above 15.5 volts.

Action Taken When the DTC Sets
The SDM sets DTC B132S and disables the State of Health (SOH) DTCs U1096, U1255, U1300, and U1301.

Conditions for Clearing the MIL/DTC
The SDM receives a battery voltage report message that the battery voltage is below 15.5 volts.

Diagnostic Aids
Refer to Charging System Check in STARTING AND CHARGING to diagnose a overcharging condition.