All values measured to ground unless otherwise noted
Conn./Plug/Pin Pin Information Test Value Comments
N79      
1 Main ground to W1 Approx. 0 Ohms to ground  
2 Circuit 58d input, "Dimmed Instrument Illumination" voltage Varies from 0.5-12 VDC, depending on setting of dimming value and ambient brightness  
3 Circuit 15R power input 12 VDC with key in steering lock position "1" Feed from F1f14
Note 1 Garage door opener requires no maintenance. N79 has to be replaced as a unit when malfunction occurs If inoperative, verify power and ground see S.I.