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Diagnostic Procedure

WARNING: This page is about a different car, the 2000 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. Turn ignition off. Disconnect passenger-side air bag Yellow 2-pin electrical connector located in right-side of instrument panel. See Figure. If connector is damaged or shows signs of corrosion, go to next step. If connector is okay, go to step  4.
  3. Replace passenger-side air bag Yellow 2-pin connector. Go to step  10.
  4. Reconnect passenger-side air bag Yellow 2-pin connector. Ensure CPA clip is installed correctly. Turn ignition on. Using scan tool, check for SIR DTCs. If DTC B0016 is retrieved, go to next step. If DTC B0016 is not retrieved, go to DIAGNOSTIC AIDS.
  5. Turn ignition off. Disconnect passenger-side air bag Yellow 2-pin electrical connector located in right-side of instrument panel. See Figure. Install SIR Driver/Passenger Load Tool (J-38715-A) on harness connector. Turn ignition on. Using scan tool, check for SIR DTCs. If DTC B0016 is retrieved, go to step  7. If DTC B0016 is not retrieved, go to next step.
  6. Turn ignition off. Replace passenger-side air bag module. See AIR BAG MODULES  under REMOVAL & INSTALLATION. Go to step  10.
  7. Turn ignition off. Remove SIR Driver/Passenger Load Tool (J-38715-A) from harness connector. Disconnect SDM connector. Using Digital Multimeter (J-39200), measure resistance between SDM harness connector terminals No. A3 and A8. See Figure. If resistance is not infinite, go to next step. If resistance is infinite, go to step  9.
  8. Repair short between circuits 1403 and 1404. Go to step  10.
  9. Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM)  under REMOVAL & INSTALLATION. Go to next step.
  10. Reconnect all SIR components. Ensure that all components are properly mounted. Clear all SIR DTCs. Go to SIR DIAGNOSTIC SYSTEM CHECK .
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