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Home >> Pontiac >> 2000 >> Montana Van Passenger >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Modules >> Self-Diagnostic System >> On-Board Diagnostics >> Entering Input Diagnostic Modes
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Entering Input Diagnostic Modes

After displaying and reading all BCM DTCs stored in memory, BCM will enter input/output diagnostic mode. Input diagnostic mode will identify BCM is receiving input information from switches or systems. BCM may flash fasten seat belts warning indicator once and/or chime tone will sound once, when any of following inputs are activated: