cruiserpatch
Supporting Vendor
This has been documented on a few other threads but I figured I would add a definitive OEM solution for this problem.
Background:
A few weeks ago my mother's 1998 LX470 started up with an illuminated battery light. I the volt-meter in the cluster read 18V+ so I used the spare tire kit (there's a 12mm/14mm wrench in the kit) to remove the serpentine belt and drive home.
The next day I swapped out the 4-month old Autozone alternator to a spare Denso rebuilt unit I had lying around. Same problem. I tested the battery and found it to be good (also only 4-months old).
I was discouraged because I wasn't sure where to start next until I found this thread (specifically post #6). I swapped the ALT-S fuse but it did not solve the issue. Still cranking out 16V+ at the terminals with the engine running.
Then it occurred to me that I could swap some parts off my own truck and see what might happen. Sure enough upon disassembly of the N+ fusible link block, I found evidence of age and corrosion enough to increase resistance across the ALT-S circuit (and probably more than just that).
Above^ 1998 LX470 fusible link block assy.
Solution:
I replaced the entire N+ Fusible link block using these parts (available on cruiserpatch.com):
Above^ 1999 LX470 with X2 power AGM battery and fusible link block assy. removed
Background:
A few weeks ago my mother's 1998 LX470 started up with an illuminated battery light. I the volt-meter in the cluster read 18V+ so I used the spare tire kit (there's a 12mm/14mm wrench in the kit) to remove the serpentine belt and drive home.
The next day I swapped out the 4-month old Autozone alternator to a spare Denso rebuilt unit I had lying around. Same problem. I tested the battery and found it to be good (also only 4-months old).
I was discouraged because I wasn't sure where to start next until I found this thread (specifically post #6). I swapped the ALT-S fuse but it did not solve the issue. Still cranking out 16V+ at the terminals with the engine running.
Then it occurred to me that I could swap some parts off my own truck and see what might happen. Sure enough upon disassembly of the N+ fusible link block, I found evidence of age and corrosion enough to increase resistance across the ALT-S circuit (and probably more than just that).
Above^ 1998 LX470 fusible link block assy.
Solution:
I replaced the entire N+ Fusible link block using these parts (available on cruiserpatch.com):
- OEM Block assembly, fusible link (1x): 82620-60010
- OEM Block assembly, fusible link cover (1x): 82621-60010
- OEM 100A fusible link, blue (1x): 90982-08246
- OEM 140A fusibile link, maroon (1x): 90982-08286
- OEM 7.5A "ALT-S" mini fuse, red (1x): 90080-82020
- OEM bolt with washer (6x): 90080-11224
- OEM N+ battery terminal (1x): 90982-05035
- OEM 12mm conductive nut (1x): 90179-08053
- OEM alternator connector: 90980-11349 (cruiserpatch.com)
- GM 12135037
Above^ 1999 LX470 with X2 power AGM battery and fusible link block assy. removed
