Body Controls - Charging Lamp ON/DTC B1405/B1516 Set

Bulletin No.: 06-06-03-006

Date: June 21, 2006

TECHNICAL

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 VIN Breakpoints shown

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 the table.





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