Test F: The Autolamps Are Inoperative
PINPOINT TEST F: THE AUTOLAMPS ARE INOPERATIVENormal Operation
When the headlamp switch is placed in the AUTOLAMPS ON position, the voltage signal is routed to ground. When the smart junction box (SJB) detects the headlamp switch in the AUTOLAMPS ON position, the SJB monitors the light sensor input. The light sensor determines the amount of light based on the input received from the ambient lighting conditions. When the ambient level has reached a point (determined by the internal programming of the SJB), the SJB provides voltage to the headlamps, parking and license plate lamps.
This pinpoint test is intended to diagnose the following:
- Light sensor
- SJB
F1-F2:
F2-F3:
