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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 DATA LIST. If ignition voltage is 9-16 volts, go to next step. If ignition voltage is not 9-16 volts, check battery and charging system. Repair as necessary.
  3. Using scan tool, request SPECIAL FUNCTIONS under INSTRUMENT PANEL CLUSTER. Go to WOW INSTRUMENT CLUSTER in OUTPUT CONTROL. WOW mode allows all Instrument Panel Cluster (IPC) indicators to be turned on and off. If all IPC indicators turn on and off when commanded to do so, go to next step. If all IPC indicators DO NOT turn on and off, go to step  5.
  4. Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM)  under REMOVAL & INSTALLATION. Reconnect all SIR components. Ensure all components are properly mounted. Clear all SIR DTC's. Go to SIR DIAGNOSTIC SYSTEM CHECK .
  5. Replace Instrument Panel Cluster (IPC). See INSTRUMENT PANEL CLUSTER (IPC)  under REMOVAL & INSTALLATION. Reconnect all SIR components. Ensure all components are properly mounted. Clear all SIR DTC's. Go to SIR DIAGNOSTIC SYSTEM CHECK .
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