Charging System Light On, Service Battery Charging System Message Displayed, DTC B1405 and/or B1516 Set (Reprogram BCM)
| Subject: | Charging System Light On, Service Battery Charging System Message Displayed, DTC B1405 and/or B1516 Set (Reprogram BCM) |
| Models: | 2006 Buick Lucerne |
| 2006 Cadillac DTS |
| 2006 Chevrolet Impala, Monte Carlo |
Built Prior to the Following VIN Breakpoints
MakeE | Model | VIN Breakpoint |
|---|---|---|
Buick | Lucerne | 6U245893 |
Cadillac | DTS | |
Chevrolet | Impala | 69416551 |
Monte Carlo |
Condition
Some customers may comment on the charging system light being illuminated in the instrument panel cluster and the "Service Battery Charging System" message being displayed on the Driver Information Center.
Upon further investigation, the technician may find DTC B1405 and/or B1516 set.
Cause
The BCM may reset while cranking the engine under low voltage conditions. The battery current sensor may draw excessive current during the BCM reset. B1405 and/or B1516 will set during this condition.
Correction
DO NOT replace the battery current sensor or the BCM.
A new service calibration has been developed to correct this condition. Reprogram the BCM with the software available in TIS2WEB.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
N9518* | Body Control Module - Reprogramming with SPS | 0.4 hr |
*This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide. | ||
