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Entering Diagnostics

NOTE:

Operating the vehicle in diagnostics for extended time periods without the engine running or without a battery charger will cause the battery to run down and possibly relate false diagnostic information, or cause a no start condition. To ensure proper operation, attach a battery charger if vehicle is to be operated in diagnostics without engine running for periods longer than 1/2 hour.

To enter diagnostic mode, turn ignition to ON position. Press "OFF" and "WARMER" buttons on the Climate control panel simultaneously, and hold until a segment check is displayed on IPC and COMBO panel. See Fig 1 -Fig 5 .

NOTE: If one or more segments of the LCD displays of the instrument panel cluster, climate control panel, or driver information center do not display while entering diagnostics, see SEGMENT CHECK  .
Fig 1: Entering Diagnostics Mode Flow Chart (1 Of 5)
G00103651Courtesy of GENERAL MOTORS CORP.
Fig 2: Entering Diagnostics Mode Flow Chart (2 Of 5)
G00103652Courtesy of GENERAL MOTORS CORP.
Fig 3: Entering Diagnostics Mode Flow Chart (3 Of 5)
G00103653Courtesy of GENERAL MOTORS CORP.
Fig 4: Entering Diagnostics Mode Flow Chart (4 Of 5)
G00103654Courtesy of GENERAL MOTORS CORP.
Fig 5: Entering Diagnostics Mode Flow Chart (5 Of 5)
G00103655Courtesy of GENERAL MOTORS CORP.
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