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Home >> Chevrolet >> 2007 >> Impala SS >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> Chime Inoperative >> Circuit/System Testing

Circuit/System Testing

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, radio ON, adjust the radio balance and fade to the left front speaker.
  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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