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Home >> Chevrolet >> 2000 >> Impala LS >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Modules >> Diagnostic Tests >> DTC B1440: Power Mode Master Input Circuit Mismatch >> Diagnostic Aids

Diagnostic Aids

An intermittent malfunction may be caused by: damaged terminals, backed out terminals, poor terminal contact or chafed or internally broken wire. Check for intermittent connections and circuits by wiggling wires and connectors.