Tag: Wiring

The video explains what is going on with the right hand side signal and marker lights on this Thomas C2 school bus. It just happened out of the blue as with all electrical faults so we needed to find out where the wiring originated and see if there was any output from the source. I… Continue reading School Bus Wiring Problem – RH Signal/Marker Lights

Whenever we had wiring problems it was a hunt down from the beginning but once you find good information showing you how to carry out a step by step process it’s much easier to be successful to find the fault. We were working on a Thomas C2 conventional school bus at the time and what… Continue reading Multiplex Wiring Troubleshooting on a School Bus

Thomas School Bus Wiring Troubleshooting The pusher bus featured in the video is a 2000 Thomas Pusher (rear engine) bus that would not start from the ignition key. The wiring diagram indicated that the purple with a white stripe numbered #4 runs from the ignition key start terminal directly to a terminal board connection at… Continue reading School Bus Wiring Problem No Start

Troubleshooting J1939 Multiplexing The J1939 is a twisted pair of wires in the multiplexing system between modules that communicates using inputs and outputs. Multiplexing can be compared to broadband cable supplying internet access, cable TV and telephone. It sends multiple electronic messages using the same signal path simultaneously with other signals. The J1939 also known… Continue reading C2 School Bus J1939 Wiring