Calibration Procedure
To complete the Battery Sensor Module calibration, there must be no significant parasitic electrical drain on the battery. If the parasitic electrical drain does not remain below 100 mA during vehicle rest, the calibration will not be completed successfully and Stao/Start system may not operate. Refer to Battery Electrical Drain/Parasitic Load Test
Starting with 2017 model year vehicles with Start/Stop, a new feature called Power On Reset was incorporated. With the addition of this feature the Battery Sensor learn procedure is no longer required after a battery disconnect/reconnect.
The vehicle will continue to use an estimated state of charge until the vehicle sits for the three hours and then it will start using the actual state of charge value. The Stop/Start system will function normally before and after the learn occurs and will be seamless to the customer.
The following parameters were added to the Circuit/System steps in the Stop/Start System Malfunction (Without LE2) Stop/Start System Malfunction (LE2) .
- Battery Sensor Module Battery State Information = Available/Not Available
- Battery Sensor Module Reset Occurred - Using Estimated State of Charge = Yes/No
GDS2 has been updated to display the parameters above and they can be found under Engine Control Module - Start/Stop System Data.