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Home >> Chrysler >> 1990 >> Imperial >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.3L >> DRB-II Switch Test Mode

DRB-II Switch Test Mode

The SBEC can only recognize high and low states on switch circuits. SBEC cannot tell the difference between an open or short circuit or a defective switch. The DRB-II display must change between INPUT HIGH and INPUT LOW.