STAR Case
Case Number: S1408000384
Release Date:

02/22/2020

Symptom/Vehicle Issue: Intelligent Battery Sensor-IBS Installation, Battery Charging Message,
Start Stop Charging Warning Lamp Illuminated On Stop Start Equipped Vehicles

Discussion: Installation process for IBS sensor and proper charging batteries.
Note: START/STOP will be unavailable if battery SOC (state of charge) is not in
the proper range. The SOC state is monitored by the PCM and BCM. Battery
temperature and SOC (State of charge are critical) see chart for start stop engine
on conditions.
Display example on a stop start vehicle

 A common misdiagnosis is Battery light illuminated, the IBS has
NOTHING to do with this Battery light and does not cause MIL Lights.
 A Battery Light illuminated IS a charging system issue, not an IBS issue.
 The IBS measures voltage, current and temperature of the battery and only provides
this information back to the BCM module.
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Center
Online does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Chrysler Group LLC

Contact the STAR Center for assistance if no solution is found

Version 5/23/13

STAR Case
 The IBS DOES NOT NEED TO BE REPLACED with NEW OR
RECHARGED batteries.
 The IBS should only be replaced, if a DTC for the IBS is active.
 The IBS maintains a running record of Amp Hours received and Amp Hours
released.
 Proper charging In-Vehicle systems is not an issue.
 Please note to charge through the IBS or tie negative clamp to body/engine ground.
 Customers, Dealers, Mechanics, and Engineers require battery charger or tester (i.e.
Midtronics GR-8 Negative clamp) be connected only onto the IBS module (B-)
Negative battery post.
 Connecting the battery charger or tester onto the (B-) battery post creates “blind
charging”.
 “DO NOT BLIND CHARGE”.

This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Center
Online does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Chrysler Group LLC

Contact the STAR Center for assistance if no solution is found

Version 5/23/13

STAR Case
 IBS learning needs 1-2 key cycles and 2-4 hours of quiescent/sleep time (no charge in
or no charge out of the battery). Quiescent (Sleep) time is defined as