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  • MrShift@Edmunds 01/17/09 5:16 pm PST

    You have to use a scan tool, but first you have to find out what's wrong:

    TECHNICAL
    Bulletin No.: 05-09-41-001B
    Date: June 02, 2008
    Subject:
    Supplemental Inflatable Restraint (SIR) Light ON, Diagnostic Trouble Codes (DTC) B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 (Inspect and/or Replace IP Harness to Inflatable Restraint Module (Air Bag) Yellow 4-Way Connector C221 and/or C222) Models:
    2003 - 2006 Cadillac Escalade Models
    2003 - 2006 Chevrolet Avalanche, Suburban, Tahoe
    2003 - 2007 Chevrolet Silverado (Classic Only)
    2003 - 2006 GMC Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
    2003 - 2007 GMC Sierra (Classic Only) Supercede:
    This bulletin is being revised to add the 2007 model year for pickups and change a part number. Please discard Corporate Bulletin Number 05-09-41-001A (Section 09 - Restraints).
    Condition
    Some customers may comment that the Service Supplemental Inflatable Restraint Light is on. Diagnosis with a scan tool may indicate a DTC B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044.
    Cause
    The most likely cause of any one of the following DTCs: B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 is improper connection/high resistance in the IP harness to inflatable restraint module connector C221 and/or C222.
    Diagnostic Information
    DTC B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 will set when one of the following conditions occur:

    ^ The SDM detects the air bag module deployment loop resistance is greater than 4.8 ohms for 500 milliseconds.
    ^ The SDM detects that the voltage at the air bag module high control is less than 2.4 volts and deployment loop resistance is 6 ohms or greater for 500 milliseconds.
    ^ For additional diagnostic information, refer to DTC B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 in the appropriate SI Document.

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