Flash: BCM Diagnostic And System Improvements
This bulletin involves updating the Body Control Module (BCM) software.
Customer and or Technician may notice one of more of the following:
A message may be displayed in the cluster ?Start/Stop Not Available?, this may have started after the battery was disconnected. On Further inspection the Technician may find
DTC U0216 Lost Communication With Driver Door Switch.
Without any DTCs (Vehicles with steering column lock, only).
U1220-87 - Lost Steering Lock Request Message - Missing Message.
U1517-87 - Body Controller Secret Code - Missing Message.
B2199-17 - Battery Voltage - Circuit Voltage Above Threshold, set in the BCM.
Day Time Running Lamps (DRL) will not turn on until the vehicle speed is 2 MPH (3 KPH), (Manual Transmission only).
Puddle Lamps will not turn off when the engine is started, (Manual Transmission only).If battery system DTC P0562 Battery/System Voltage Low or P0563 Battery/System Voltage High are set, normal charging system diagnostics needs to be performed.
