Forum Discussion
wa8yxm
Dec 08, 2016Explorer III
I like a test light over a multi meter, easier to use
There is a battery cut off switch somewhere.
and a Fuse or circuit breaker
Suspect list is as follows
Dead battery (Test light connected direct to battery will be DIM or Dark
Bad connection. Test procedure follows
Disconnect... Disconnected... (Switch off)
Tripped manual breaker/blown fuse, defective auto-reset breaker.
Diagnostic procedure description is using a test light, but if you use a multi-meter BRIGHT = battery voltage (12.6) Dark (Dark or dim) = less than 10 volts.
Check battery (Clip to one post, tip to the other (if six volt pairs check the most positive and most negativfe, ignore jumper unless light is dim/dark)
Move clip Chassis ground tip to POSITIVE
Move out along the POSITIVE wire, at each point if you have to move the clip check last known GOOD test point.. NOTE you may use an "extension" wire so you don't need to keep moving clip.
when you come to a device, check both sides of it, If it is a Solenoid (they look a bit like ford starter solenoids but are different, check only the LARGE terminals, ignore the small ones. Keep going till you hit the fuse block and check the main fuses there.
problem exists between BRIGHT and DARK
There is a battery cut off switch somewhere.
and a Fuse or circuit breaker
Suspect list is as follows
Dead battery (Test light connected direct to battery will be DIM or Dark
Bad connection. Test procedure follows
Disconnect... Disconnected... (Switch off)
Tripped manual breaker/blown fuse, defective auto-reset breaker.
Diagnostic procedure description is using a test light, but if you use a multi-meter BRIGHT = battery voltage (12.6) Dark (Dark or dim) = less than 10 volts.
Check battery (Clip to one post, tip to the other (if six volt pairs check the most positive and most negativfe, ignore jumper unless light is dim/dark)
Move clip Chassis ground tip to POSITIVE
Move out along the POSITIVE wire, at each point if you have to move the clip check last known GOOD test point.. NOTE you may use an "extension" wire so you don't need to keep moving clip.
when you come to a device, check both sides of it, If it is a Solenoid (they look a bit like ford starter solenoids but are different, check only the LARGE terminals, ignore the small ones. Keep going till you hit the fuse block and check the main fuses there.
problem exists between BRIGHT and DARK
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