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Wearfx · 03-29-2016, 11:11 AM

Still at it! Thanks for all the help!
Checked J4, and 5 is grounded.
When I jumper between 5&4 or 5&3, nothing.
Would this indicate bad relay?
If so, what does this relay look like?

Thanks!!!

Rook · 03-29-2016, 01:46 PM

In post #11, you said you had the Disconnect Relay on order from Amazon......did you ever get it? This Relay does go bad occasionally, but it also could be that the Relay has no 12VDC connected to it to power it. Rook

chboone · 03-29-2016, 09:24 PM

It's possible your disconnect relay is bad but unlikely.
Call RV Custom Products and ask for troubleshooting guide and any documentation for your BCC, they will email it to you.

RV Custom Products
14000 Anson Ave, Santa Fe Springs, CA 90670
(562) 921-8353

This is the disconnect my BCC has.

Battery Disconnect Latching Relay by RV Custom Products, RVC1002

chboone · 03-29-2016, 10:02 PM

Here is some additional information. I would still call RV Custom Products to get the documentation for your BCC.

Battery Disconnect Function

Refer to Fig. 1, Coach Disconnect - partial schematic to aid in troubleshooting. The battery disconnect relay K2 is a magnetically latched relay. Hence, power is applied to its coil only momentarily to actuate the relay. Unlatching is caused by reversing the direction of current through the coil. The coach control panel battery disconnect switch is single pole, double throw (SPDT) with center off (momentary action). Pushing the top of the rocker switch engages the disconnect relay while pushing the bottom of the switch disengages the relay. Fig. 1 also shows the destinations and fuses of the various Coach Battery and Coach Battery Disconnect circuits.

Troubleshooting

It is assumed that the coach battery is connected and properly charged. If the Coach Battery Disconnect fails to operate, unplug J4. Momentarily grounding J4-3 should engage K2 and momentarily grounding J4-4 should disengage the relay. If the relay operates normally, the fault lies in the coach wiring or switch. If it does not, replace the entire module.

Note: For other testing of coach circuits, it is safe to engage and disengage the Coach Battery Disconnect relay by momentarily connecting the relay terminals to coach battery and ground. Important, clip leads should not be connected more that 2 min. since the relay coil is intermittent duty and will overheat. Connecting the P lead to plus and the G lead to minus (ground) will engage the relay and connecting the P lead to minus (ground) and the G lead to plus will disengage the relay.