Diagnostics?

[SpaceForceOne]

Hi!

We recently bought a 1993 International 3800, DTA360 engine and AT545 Transmission. I know we're too old for OBDII, but I found a few wire connectors coming out from under the gear shifter, and was wondering if somebody could help identify them? Image attached, they drop out right above the engine cover (covered in shiny insulation in picture).

I'm looking for any information I can use for diagnostics in the future, as well as any data that might be of interest while I'm driving. I'm working on making a glass cockpit for other pieces of information (Transmission temp, tire pressure, compass, altitude, vehicle attitude, etc.), and would love to be able to throw a few more gauges on there with any info I can extract from the engine/transmission.

Best,
Space Force One

[Johnny Mullet]

Not sure about the wires. Your bus may have a round 6-pin diagnostic connector or maybe even a diagnostics button and can retrieve flash codes.

[Asetechrail]

Don’t know about those wires. However; a 1993 DT360 is a purely mechanical motor. No electronics = no ecm or trouble codes.