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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 639 (Instrument Panel System Displays And Gauges) >> Diagnostic Information and Procedures >> Chime Inoperative >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Before performing this diagnostics, make sure no indicators are illuminated after the IPC performs a lamp test. If any indicators are illuminated after the bulb test, perform the indicator diagnostics before this diagnostics.
  1. Ignition ON, perform the Chime Tone Test in the instrument panel cluster (IPC) Output Controls.
    • If the chime does not sound, replace the IPC.
  2. Ignition ON, verify that the scan tool Key In Ignition Status parameter is Key In.
    • If not Key In, test the signal circuit and ground for a short to voltage or an open/high resistance. If all circuits test normal, replace the ignition switch.
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