COUPLING 3N4150 - Caterpillar

Which Generate This Code:This diagnostic code is associated with the CAN bus connections on the left joystick. It indicates that the CAN-high and the CAN-low connections have been miswired. All outputs of the module are disabled while this diagnostic code is active.Test Step 1. CHECK THE CAN BUS CONNECTIONS
Verify that (wire K990-GN) is connected to contact IQAN Lx A0-3.
Verify that (wire K900-YL) is connected to contact IQAN Lx A0-6.
Verify that (wire K990-GN) is connected to contact IQAN Lx A0-9.
Verify that (wire K900-YL) is connected to contact IQAN Lx A0-12.Expected Result:The CAN bus connections are miswired.Results:
YES - The CAN bus connections are miswired.Repair: Rewire the CAN bus connections properly. Refer to the complete machine electrical schematic.STOP
NO - The CAN bus connections are not miswired.Repair: If the problem remains present, exit this procedure and perform this procedure again. If conditions are not resolved, replace the module.STOP