DTC B1001. GMC Truck Canyon Pickup

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2009 🢒 Canyon Pickup - 2WD 🢒 Safety and Security 🢒 Supplemental Inflatable Restraints 🢒 DTC B1001

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 B1001: SDM Option Configuration Error

When the ignition is first turned ON, the inflatable restraint sensing and diagnostic module (SDM) compares the restraints ID stored in the SDM to the restraints ID stored in the body control module (BCM). The restraints ID being compared contains the last four digits of the SDM part number. The SDM then compares the vehicle identification number (VIN) stored in the SDM to the VIN stored in the BCM.

Conditions for Running the DTC

Ignition voltage is between 9-16 volts.

Conditions for Setting the DTC

The restraints ID stored in the SDM does not match the restraints ID stored in the BCM, or the VIN information stored in the SDM does not match the VIN information stored in the BCM.

Action Taken When the DTC Sets

•	The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator.

•	The SDM disables all AIR BAG deployments.

Conditions for Clearing the DTC

•	The last 4 digits of the SDM part number match the last 4 digits stored in the BCM.

•	The restraints ID that is stored in the SDM matches the restraints ID that is stored in the BCM.

Diagnostic Aids

DTC B1001 is an indication that the restraint IDs stored in both the BCM and SDM do not match or that the VINs stored in both the BCM and SDM do not match. If the BCM was replaced, the replacement module will have to be reprogrammed for proper operation.

Reference Information

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information.

Circuit/System Verification

Verify that the scan tool BCM VIN information matches the vehicle VIN.

⇒	If the VINs do not match, reprogram the BCM.

Perform the SDM Setup SDM Part Number in BCM procedure.
With a scan tool, verify DTC B1001 is not set as current.

⇒	If DTC B1001 is current replace the SDM.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

•	SIR/SRS Wiring Repairs

•	Control Module References for SDM and BCM replacement, setup, and programming