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Home >> Volvo >> 1989 >> 780 GLE, AW71L >> Repair and Diagnosis >> Engine Performance >> System >> Tests W/Codes - Non-Turbo >> Entering Self-Diagnostics (Ignition System) Control Functions >> Control Function 2 (Activating Breakers)
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Control Function 2 (Activating Breakers)

This function allows a specific component to be tested for operation and connection. As each is activated, information is provided through LED in a flash code. This control function is generally used as a double-check after repairs.