Batteres: Chassis Battery Disconnect Switch, Ground to Starter
Posted: Fri Jan 24, 2020 9:34 am
Good morning fellas and gals,
Some of you may have seen on FB where a couple months back I moved my chassis batteries into my engine bay in order to make additional room for two more house batteries in the battery tray. The move was successful and everything operating normal, aka as things should or so I thought. At the time of the move I did not relocate my chassis battery local disconnect switch. But went back in and did this yesterday. The following note is where my question for your experiences and knowledge comes into play.
So I have a puzzle to solve. I went back in and moved my switch and put it in the battery negative circuit path. Here is the head scratcher for me. Maybe one of you will recognize it and tell me I've had a "duh" moment. Connie starts with chassis battery cutoff/disconnect switch in off position and with the ground removed from the chassis batteries. Verified the positive lead does go to starter, as when removed it nothing. All dash lights off. (Had coach Disconnected from shore power as well had the house batteries disconnect switch off. ) The starter is still making ground even though the chassis batteries are isolated. Removed my white wire from negative terminal and this is the ground for the Do Not Shift Transmission light beside the parking brake light. The light no longer lit when wire was removed. Yet starter was still able to turn over.
Head scratcher. Gotta go back and review pix and read some TS tips.
Possible clue to issue:
Also, when the inside Heart Interface switch is in the On position the lights will come on for a bit (via Inverter) then go off. This is with the house batteries disconnect switch in Off position. I know this disconnect is working as the battery monitor no longer lights up with this switch in off. Wondering if the isolator between house and chassis, aka via the momentary battery switch at drivers seat is shorted and no longer isolating????
Thanks for your thoughts.
r/Willie
'95 Continental, 8.3L, Allison MD3060
Some of you may have seen on FB where a couple months back I moved my chassis batteries into my engine bay in order to make additional room for two more house batteries in the battery tray. The move was successful and everything operating normal, aka as things should or so I thought. At the time of the move I did not relocate my chassis battery local disconnect switch. But went back in and did this yesterday. The following note is where my question for your experiences and knowledge comes into play.
So I have a puzzle to solve. I went back in and moved my switch and put it in the battery negative circuit path. Here is the head scratcher for me. Maybe one of you will recognize it and tell me I've had a "duh" moment. Connie starts with chassis battery cutoff/disconnect switch in off position and with the ground removed from the chassis batteries. Verified the positive lead does go to starter, as when removed it nothing. All dash lights off. (Had coach Disconnected from shore power as well had the house batteries disconnect switch off. ) The starter is still making ground even though the chassis batteries are isolated. Removed my white wire from negative terminal and this is the ground for the Do Not Shift Transmission light beside the parking brake light. The light no longer lit when wire was removed. Yet starter was still able to turn over.
Head scratcher. Gotta go back and review pix and read some TS tips.
Possible clue to issue:
Also, when the inside Heart Interface switch is in the On position the lights will come on for a bit (via Inverter) then go off. This is with the house batteries disconnect switch in Off position. I know this disconnect is working as the battery monitor no longer lights up with this switch in off. Wondering if the isolator between house and chassis, aka via the momentary battery switch at drivers seat is shorted and no longer isolating????
Thanks for your thoughts.
r/Willie
'95 Continental, 8.3L, Allison MD3060