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Home >> Chevrolet >> 2002 >> Impala Police >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Body Control Modules >> Diagnostic Tests >> DTC B1440: Power Mode Master Input Circuit Mismatch >> Code Enable Criteria

Code Enable Criteria

Following criteria must be met to enable DTC; BCM must be powered and must detect a change in ignition switch circuit states.

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