Power

Gen3 - Fault - Not Powering On

Notes
The Camera/Power Port on the CCIM that accepts the main power loom and is the entry point of DC power for the entire Gen3 system.
To diagnose a power issue, the first thing to check would be the main DC power loom.
Check that the 3 pin power connector on the main loom has the correct voltages. The 3 pin connector is attached to the power/camera harness.
  • Pin 1 - Ground - Test for continuity between this pin and the chassis/main battery ground
  • Pin 2 - 12V accessories - This should be 12V when accessories is active; This is the line that triggers the Gen3 to power on
  • Pin 3 - 12V constant - This should be a constant 12V power supply; This is the main power source for the Gen3
Check the 12V signals on pins 2 and 3 on the 3 pin connector, if either of these voltages are not correct then the Gen3 system won't power on.
If the voltages are not correct, then double check the 24V to 12V converter (if installed). Depending on which version has been supplied, there should be a 24V relay attached to the side of the regulator which supplies the 12V accessories signal, as well as a link wire between the 24V and 12V grounds.

Info
If all expected voltages are verified then you can go on to the next step of checking  the CCIM and basic CCIM functionality.


To diagnose a power issue within the CCIM, the first thing to check would be to verify the two 3A power fuses are not blown. The four CCIM screws need to be unscrewed and the lid opened to gain access to the fuses. With the CCIM cables facing you, the fuses are located on the PCB left hand side. Replace any blown blade fuses with the correct rating of 3 amps.

Two 3 Amp blade fuses in the CCIM


Info
If both fuses are intact then proceed with basic CCIM functionality testing.

To check the CCIM is functioning correctly, disconnect the cable from the display and switch the machine to accessories, you should hear a relay click in the CCIM about every 5-10 seconds, this is the processor in the CCIM resetting power as it can't communicate with the display. The cover on the CCIM might need to be removed to hear the relay clicking. If there is no clicking there is an issue with the CCIM.

If the CCIM is working, reconnect the cable to the display. Repeat the same test as above, if you still hear the clicking of the relay, then there is a problem communicating with the display, which could mean either an issue with the display or the CCIM to Display cable.

Warning
Other than the two blade fuses in the CCIM, neither the CCIM nor the Display have other user serviceable components. If a power up fault has occurred in either of these units, then they will need to be shipped back to EQSS for diagnoses and repair.


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