RFB
97 FZJ80 LIFTED SC DUAL BATTERIES,37s
AFTER 3 weeks in the road my IBS system failed won't swap chrarge over to aux battery both batteries are new Odyssey extremes 1500 series everything's fine 20 days Magnum investor stops redlight says needs monthly test. Then the house battery is t being charged IBS alarm going off constantly pull over and yank the RBM relay. Still nothing. So again pull over in pouring rAin and install a new relay. And still it's happening. Am I chasing the wrong prob? I checked all wiring ground etc can't seem to find it.