Airbags and seat beltsModel years 2000–2006Manufacturer
Air bag (SIR) lamp on with DTC B1001 after BCM or SDM replacement
GMC Yukon Models 2000 - 2006 (and Escalade, Avalanche, Silverado Classic, Suburban, Tahoe, Sierra Classic); except export vehicles RPO EXP
FaultCrate・Air bag (SIR) lamp on with DTC B1001 after BCM or SDM replacement
The SIR lamp stays on steady after an SDM or BCM has been replaced, with DTC B1001 current in the SDM.
The SDM compares the restraints ID stored in the SDM to the restraints ID stored in the BCM.
B1001 sets if the restraints ID in the SDM does not match the one in the BCM, or the VIN information in the SDM does not match the VIN information stored in the PCM/VCM.
How to tell
What to do
- A replaced SDM or BCM must learn the restraints ID.
- On some vehicles a calibration may need to be selected after choosing "Vehicle Theft Deterrent - Learn"; select the one labeled "Vehicle Theft Deterrent for Passlock sensor".
- A replaced SDM or BCM must learn the restraints ID, which requires performing a 10 minute V.T.D. "Vehicle Theft Deterrent - Learn" with the Tech 2.
Caution
- A 30 minute theft relearn will not allow the SDM or BCM to learn the restraints ID.
Applies to
- The bulletin lists GMC Yukon Models 2000 - 2006.
See the evidence (2 documents, 8 passages)
| Document | Publisher | Date |
|---|---|---|
| [1]PIT4093B: SIR MIL With DTC B1001 After BCM or SDM Replacement ↗ | ManufacturerGeneral Motors (published by NHTSA) | 2020-03-10 |
| [2]PIT4093B SIR MIL With DTC B1001 After BCM or SDM Replacement ↗ | ManufacturerGeneral Motors | — |
Applies toThe bulletin lists GMC Yukon Models 2000 - 2006.
GMC Yukon Models 2000 - 2006 All All All All— [1] Models
First signsThe SIR lamp stays on steady after an SDM or BCM has been replaced, with DTC B1001 current in the SDM.
SIR lamp stays on steady after a SDM or BCM has been replaced and a DTC B1001 code current in the SDM.— [1] Condition
Why it happensThe SDM compares the restraints ID stored in the SDM to the restraints ID stored in the BCM.
the SDM compares the restraints ID stored in the SDM to the restraints ID stored in the body control module (BCM).— [1] Condition
RepairA replaced SDM or BCM must learn the restraints ID.
If an SDM or BCM is replaced they must learn the restraints ID.— [1] Recommendations
CautionA 30 minute theft relearn will not allow the SDM or BCM to learn the restraints ID.
A 30 minute Theft relearn will not allow the SDM or BCM to learn the restraints ID.— [1] Recommendations
Why it happensB1001 sets if the restraints ID in the SDM does not match the one in the BCM, or the VIN information in the SDM does not match the VIN information stored in the PCM/VCM.
If 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 PCM/VCM a B1001 DTC will set.— [2]
RepairOn some vehicles a calibration may need to be selected after choosing "Vehicle Theft Deterrent - Learn"; select the one labeled "Vehicle Theft Deterrent for Passlock sensor".
On some vehicles, after selecting "Vehicle Theft Deterrent - Learn" a calibration may need to be selected. Be sure to select the calibration labeled "Vehicle Theft Deterrent for Passlock sensor".— [2]
RepairA replaced SDM or BCM must learn the restraints ID, which requires performing a 10 minute V.T.D. "Vehicle Theft Deterrent - Learn" with the Tech 2.
If an SDM or BCM is replaced they must learn the restraints ID. To learn the restraints ID a 10 minute V.T.D. "Vehicle Theft Deterrent - Learn" must be performed with the Tech 2.— [1]
Put together by FaultCrate from public records and technical documents. The cause and the repair are for the workshop to decide with the vehicle in front of it. Counts are records, not failure rates.
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