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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Component Testing - (Hybrid)) >> Introduction >> Illumination dimmer switch (14A464) >> Component testing procedure

Component testing procedure

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ILLUMINATION DIMMER SWITCH (14A464) - COMPONENT TESTING

Circuit to test Connect self-powered test light or ohmmeter to terminals Move switch to these positions A good switch will indicate
Interior lamps Circuit 4 and 5 Interior lamps Closed circuit
Off Open circuit
Illumination dimmer resistor 4 and 6 Rotate knob clockwise Ohmmeter will show smoothly increasing resistance
Dome defeat Circuit 4 and 2 Dome switch On 50? ± 1%
Dome defeat 100? ± 29%