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ASA Electronics iN-Command JRVCS105 Troubleshooting Manual

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JRVCS105 TROUBLESHOOTING GUIDE
This guide is made to ease troubleshooting the iN-Command system. It will cover the
wiring code and where those wires are connected to the Body Control Module (BCM)
and Display Commander (DC), system functions, and what to look for to discern
where a problem could be.
Body Control Module (BCM)
Table of contents.........................................Page 1
Keystone wiring code..................................Page 2
Body Control Module wiring diagram.........Page 3
BCM Pin Values...........................................Page 4
Device Pairing & Functionality Testing........Page 5 - 10
Troubleshooting..........................................Page 11 - 12
Display Commander (DC)
Page 1

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Questions and answers

Bruce
February 14, 2025

My DC shows 0.3 volts. I check at battery and have ****5 volts. Everything in the RV is working as it should.

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Summary of Contents for ASA Electronics iN-Command JRVCS105

  • Page 1 JRVCS105 TROUBLESHOOTING GUIDE This guide is made to ease troubleshooting the iN-Command system. It will cover the wiring code and where those wires are connected to the Body Control Module (BCM) and Display Commander (DC), system functions, and what to look for to discern where a problem could be.
  • Page 2 Keystone 12 VDC Wire Standard Page 2...
  • Page 3 Electric Wiring Guide for the BCM BCM Pins 1-18 are on the Left side, ascending from Top to Bottom. BCM Pins 19-36 on the Right side, ascending from Bottom to Top. BCM Pins GND, RX, TX, and +12V DC (DC RX/TX wires) are at the Top Right side.
  • Page 4 BCM Pin Values NAME BCM FUNCTION NOTE INPUT FROM SENDING UNIT SINGLE WIRE WORKS FRESH 1 TANK IN 0-185KOHM ON RESISTANCE INPUT FROM SENDING UNIT SINGLE WIRE WORKS BLACK 1 TANK IN 0-185KOHM 0-.74V = EMPTY (○○○) 0-.74V = EMPTY (○○○) ON RESISTANCE .75-1.74V= 1/3 (●○○) .75-1.74V= 1/3 (●○○)
  • Page 5 The BCM should be wired correctly, without loose connections, and +12 VDC connected at pin 35. LED will indicate that the BCM is powered and receiving 12 VDC. The DC is connected to the BCM with 4 wires in the upper right corner of the board: ground, receive, transmit, and 12 VDC power in (Gnd, RX, TX, and +12VDC).
  • Page 6 The DC will now bring up the Home Screen. If the Floor Plan has been loaded, all the available water tanks , battery voltage, and 3 "Hotkeys" will appear. The hotkeys will turn on the Water Pump, Water Heater, and Interior lighting groups.
  • Page 7 When turning on the Water Pump, open the Kitchen Faucet and listen for the pump to turn on. The Water Pump is pressure controlled and will cycle based on demand. During this time the Water Pump button will stay highlighted. The Interior Lights button will turn on all interior lights and stay highlighted when the lights are on.
  • Page 8 The Pairing Screen will appear: On the iOS Device, go to Settings and turn on Bluetooth. The iOS device will automatically begin broadcasting a signal and it will show up in the Unpaired Devices list. Select the device. On both the iOS device and the DC, a Pairing Request screen will appear.
  • Page 9 The Android Devices pair a little differently: When the Pairing Screen is open on the DC, ensure that Bluetooth is functioning on the Android device, and open the iN-Command App. Select the Menu button in the Android App and then the Bluetooth button. On the DC press Discover and on the Android device press Scan.

  • Page 10: Troubleshooting

    To verify that the Handheld device is connected to the DC, select the Interior Lights button. All the Interior Lights should cycle with each button press and the corresponding buttons on the DC , and other devices, should cycle from OFF to ON and vice versa. Using the handheld device, cycle through all the functions previously tested on the DC.
  • Page 11 Troubleshooting Symptom Solution Try cycling the DC with the Power button. Check main fuse in Distribution Panel. Display Commander (DC) will not Press Reset button on BCM. turn ON or no front panel operation Check for 12V+ on +12VDC wire to DC using a Digital Multi-meter.
  • Page 12 Above is the Water tank sending unit. The sending unit runs on 7 VDC supplied by the BCM. The 7 VDC signal runs to a sensor embedded into the side of the water tank. The 1/3, 2/3, and Full sensors are then aligned in an ascending diagonal line from the 7 VDC sensor.

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