Chevrolet Silverado / GMC Sierra. Manual - part 667
DTC Descriptor
DTC B1001 00
SDM Option Configuration Error
Circuit/System Description
The inflatable restraint sensing and diagnostic module (SDM) stores a primary data key, which is
a 4-digit number, and a secondary data key, which is a portion of the vehicle identification
number (VIN). When the ignition is turned ON, the SDM compares this information to the
information stored in the body control module (BCM) over the serial data communication circuit.
If there is a mismatch between the information stored in the SDM and BCM, DTC B1001 will
set.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
The 4-digit primary data key stored in the SDM does not match the 4 digits stored in the
BCM.
The VIN stored in the BCM does not match that of the vehicle.
Action Taken When the DTC Sets
The SDM commands the AIR BAG indicator ON.
The SDM disables all deployments.
Conditions for Clearing the DTC
The last 4-digit Primary Data Key in the SDM match the last 4 digits stored in the BCM.
The VIN that is stored in the SDM matches the VIN stored in the BCM.
Diagnostic Aids
This DTC is an indication that an incorrect SDM is installed in the vehicle, or that the SDM
and/or the BCM was replaced without reprogramming the BCM with the new information.
Reference Information
Schematic Reference
2008 Chevrolet Silverado 1500
2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
SIR Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
SIR System Description and Operation
Electrical Information Reference
Circuit Testing
Connector Repairs
Testing for Intermittent Conditions and Poor Connections
Wiring Repairs
SIR/SRS Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information.
Circuit/System Testing
1. Ignition ON, verify the scan tool Secondary Key Status displays Valid.
If not the specified value, verify the scan tool Received VIN Digits 2-7 match the
vehicle VIN, if the VIN does not match, reprogram the BCM. If the VIN matches,
reprogram the SDM.
2. Ignition ON, verify the scan tool Primary Key Status displays Valid.
If not the specified value, verify the scan tool SDM Primary Key matches the Received
Primary Key, if the key does not match, perform the Setup SDM Primary Key in BCM
procedure.
IMPORTANT: When removing connectors inspect for damage or corrosion.
Damage or corrosion in the following requires repair or
replacement of the affected.
SDM
SDM wiring harness
2008 Chevrolet Silverado 1500
2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
3. With a scan tool, verify DTC B1001 is not set as current.
If DTC is set as current, replace the SDM.
Repair Procedures
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for SDM and BCM replacement, setup, and programming
DTC B1011
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptor
DTC B1011 71
System Disabled Information Stored Invalid Serial Data Received
Circuit/System Description
The vehicle rollover sensor (ROS) monitors the vehicle speed signal (VSS) on the GMLAN serial
data circuit. If the VSS is marked as invalid or is missing, the ROS will set a diagnostic trouble
code (DTC).
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
If the VSS is marked as invalid or is missing.
Conditions for Clearing the DTC
The condition for setting the DTC no longer exists.
A history DTC will clear once 100 malfunction-free ignition cycles have occurred.
Diagnostic Aids
2008 Chevrolet Silverado 1500
2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
DTC B1011 does not indicate a ROS system malfunction and will not cause any warning
indicators to illuminate. Factors such as a long engine crank or a delay in serial data
communications will cause B1011 to set.
Reference Information
Electrical Information Reference
Circuit Testing
Testing for Intermittent Conditions and Poor Connections
Connector Repairs
Wiring Repairs
Repair Procedures
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
SIR/SRS Wiring Repairs
DTC B1019
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC B1019 00
SDM System Configuration Error
DTC B1019 3A
SDM System Configuration Error Incorrect Component Installed
Circuit/System Description
The passenger air bag ON/OFF indicators are used to notify the driver when the Passenger
Presence System (PPS) has enabled or disabled the I/P inflator module. When the ignition is
turned ON, the ignition voltage is supplied to the passenger air bag ON/OFF indicators and to the
2008 Chevrolet Silverado 1500
2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado