GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 Envoy - 2WD 🢒 Bulletins 🢒 SIR Light Illuminated and DTC B1001 Stored in the SDM - keywords BCM calibration code deterrent diagnostics ECM history lamp light MIL module PCM program SES theft theftdeterrent theftloc

SIR Light Illuminated and DTC B1001 Stored in the SDM - keywords BCM calibration code deterrent diagnostics ECM history lamp light MIL module PCM program SES theft theftdeterrent theftloc

Subject:SIR Light Illuminated and DTC B1001 Stored in the SDM

Models:2004-2006 Buick Rainier
2002-2006 Chevrolet Trailblazer, Trailblazer EXT and Trailblazer SS
2002-2006 GMC Envoy, Envoy XL, Envoy XUV and Envoy Denali
2002-2004 Oldsmobile Bravada
2005-2006 Saab 9-7x


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

B1001 stored in the SDM. This is most common when a BCM or SDM is replaced in service.

Recommendation/Instructions:

Follow the Procedures listed below:

  1. Use Tech 2 scan tool
  2. Build vehicle year and body
  3. Select body section
  4. Select BCM
  5. Select Special Functions
  6. Set up SDM serial number in the BCM.
  7. Select BCM SETUP soft key.
  8. Clear all history codes.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.