Battery dash light glows-barely.

Dealing with all subsystems specific to the diesel powered Datsun-Nissan 720 pickup trucks.

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dn29626
Posts: 249
Joined: 10 years ago
Location: Anderson, SC

Battery dash light glows-barely.

#1

Post by dn29626 » 10 years ago

My battery dash light glows all the time while running. It is a faint glow only noticed during after dark driving. Battery holds a good charge even after sitting for several days. I do not drive it every day. Alternator has good readings. Off are 12 and running are about 13.
82 King Cab 2wd (nice)
82 Reg Cab (body damage)
Anderson , SC
Since Fall 2009

Nissan_Ranger
Posts: 264
Joined: 13 years ago
Location: Canada

#2

Post by Nissan_Ranger » 10 years ago

Your alternator has an internal part that has failed; most likely a diode. Mine did exactly the same thing, had the same indication, and the same system voltage. In my case, a main power diode had failed. Your system voltage should be more like 14 1/4 to 14/1/2 volts and anything less will cause the light to show. The lower the system voltage (below 14 1/4), the brighter the glow. You'll likely see the light get significantly brighter when you run lights and such.

HTH, keep us posted...

N_R
The old 'six gun' was as popular as the cell phone in its time and just as annoying when it went off in the Theater.

Highway Man
Posts: 46
Joined: 4 years ago
Location: Hillman West Australia

Re: Battery dash light glows-barely.

#3

Post by Highway Man » 4 years ago

Hello dn29626,

Mine is doing the same thing and I guess for the same reason, so I have bout anew one and it travels behind my Seat, Just in case it dies out past the "Black Stump", In which case I will crack a Stubby and change it in the shade while my Wife reads our the Wedding Vows of Forty Years ago, and I read the Menu
of instalation, then crack another Stubby and wash my hands!.

Regards,
highway man!

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