"B" battery cables.

[JRL]

Starting about two years ago, most of the GEN 1 cars I've bought have had low voltage to the battery and in every case it was the B cable, the long cable that runs under everything and takes a good hour to hour and a half to replace.
The cable corroded and it loses the ability to carry 13.5 volts to the battery and eventually you wind up with a dead battery.
Many are fooled thinking they need an alternator when all they need a replacement cable.
Do yourselves all a favor, if your cables are original you most likely need new ones or at least the one B cable.
Do a battery load test, this is the easiest way to find out.

What I didn't know is there is a TNN that apparently came out in about 2003-2004 that specifically addressed this problem.

[Chilled Man]

B Cable as in the Red one or the blue one ?

[JRL]

Red

[Chilled Man]

From where to where ?

I am having this exact issue on my 98R wont hold a charge at all .

But when the car is running voltage stays at +13volts except when the sub is on

[JRL]

You have had these apart enough to know where it goes to,
battery terminal to the fuse box

[Chilled Man]

Ahhhh Ok I know exaclty wich one it is then .

I know where everything goes I just dont know the exact name for it

Actually had a few cars that its already been replaced on .