He could be right. Those gauges are on a J1587 databus that feeds through the Message Center (MC).
Are the lights on the MC (indicator lamp panel) working properly? If so, it's getting data from the Vehicle Data Computer (VDC). If it were not, it would cause the lights to 'dance' or chase after a 45 seconds data loss.
All of those gauges are on a four-wire spider harness. Each gauge is addressed on the same databus. All of the gauge connectors are the same, it's the gauge itself that determines the function.
If the MC is working I would suspect the spider harness 5-pin connector at the Message Center (indicator lamp panel). Remove, clean and re-seat the connector with the engine and ignition off. This just might solve your problem.
You have Freightliner Custom Chassis System III instruments. If you want a part number for the MC you can call Freightliner in Gaffney (864-487-1700). Have the last six characters of your VIN handy (it will start with F). Don't call a Freightliner Truck service center, it has to be Gaffney.
If you're comfortable with vehicle electrical and instrumentation I can send you troubleshooting materials.
(AE5DS) & Linda Stall
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