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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 135 (Supplemental Inflatable Restraint System) >> Diagnostic Tests >> DTC B1001: Option Configuration Error >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Buick Park Avenue. However, it is still accessible from the selected car via links, so may be relevant.
  1. If SIR diagnostic system check has been performed, go to next step. If SIR diagnostic system check has not been performed, go to SIR DIAGNOSTIC SYSTEM CHECK .
  2. Connect scan tool to Data Link Connector (DLC), located under left side of instrument panel. Using scan tool, request SIR DTC's. If DTC B1001 is displayed as a current DTC, go to next step. If DTC B1001 is not displayed as a current DTC, go to step  8.
  3. Using scan tool, verify Body Control Module (BCM) is programed with correct Vehicle Identification Number (VIN). If VIN is not correct, go to next step. If VIN is correct, go to step  5.
  4. Using scan tool, select BCM MAIN MENU, then SPECIAL FUNCTIONS, then SETUP BCM. Program correct VIN into BCM. Go to next step.
  5. Using scan tool, perform SET UP SDM serial number in BCM. Scan tool will display DO YOU WANT TO SET UP BODY CONTROL MODULE? message. Select SETUP BCM on scan tool. Scan tool will set up BCM while displaying NOW SETTING UP NEW CONTROL MODULE. When setup is complete, scan tool will display BODY CONTROL MODULE SETUP IS COMPLETE. Touch EXIT on scan tool. Go to next step.
  6. Using scan tool, erase DTC's. Turn ignition off. Turn ignition on. Using scan tool, check to see if DTC B1001 is current. IF DTC B1001 is current, go to next step. If DTC B1001 is not current, go to step  8.
  7. Turn ignition off. Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM)  under REMOVAL & INSTALLATION. Go to next step.
  8. Reconnect all SIR components. Using scan tool, clear all DTC's. Road test vehicle. Using scan tool, request SIR DTC display. If DTC B1001 is retrieved by scan tool, go to step  2. If DTC B1001 is not retrieved by scan tool, system is okay. Go to SIR DIAGNOSTIC SYSTEM CHECK .
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