Lucerne V6-3.8L VIN 2 (2006)
Instrument Panel Control Module: Customer Interest
Restraints - Air Bag Lamp ON/DTC B1019
Bulletin No.: 07-09-41-008B
Date: February 07, 2008
TECHNICAL
Subject:
Air Bag Readiness Light On, DTC B1019 Set in Sensing and Diagnostic Module (SDM) (Reprogram Instrument Panel Cluster (IPC))
Models:
2006-2008 Buick Lucerne
Built Prior to January 8, 2008
2006-2007 Chevrolet Monte Carlo
2006-2008 Chevrolet Impala
Built Prior to November 19, 2007 (VIN Breakpoint 89276078)
Supercede:
This bulletin is being revised to add the 2008 Buick Lucerne and to provide production implementation dates. Please discard Corporate Bulletin Number
07-09-41-008A (Section 09 - Restraints).
Condition
Some customers may comment on the air bag readiness light being illuminated.
A scan tool may reveal DTC B1019 with a symptom code of 3A set as history in the SDM.
If the code is set as current, use the appropriate SI instructions for this DTC to troubleshoot this concern.
Cause
The instrument panel cluster (IPC) has failed to detect the passenger airbag ON/OFF indicator due to a software timing concern and has transmitted this
information to the SDM. The IPC can fail to detect this ON/OFF indicator if there is an unbuckled passenger and the vehicle is running because the IPC
is checking the status of the indicator at the incorrect timing interval. This DTC can also set more frequently in low voltage operation.
Correction
A revised IPC calibration has been developed to address this issue. Reprogram the IPC with updated calibration files using the TIS2WEB Service
Programming System (SPS) application. As always make sure your Tech 2(R) is updated with the latest software version.
Warranty Information
