Not really my own theory. It is in the description of operation of the TTM and ITBM. They receive many inputs from other modules on the CAN-IHS, CAN-C as well as the TTM having responsibility for its own logic, actuation and sensing.I actually found a tapped wirewound 100 watt resistor (used when building tube amps as an attenuator) . I hooked that up with the meter in series to measure amps. The resistor tap was set to 5 ohms. Most I could get out, on heavy electric setting and gain on 10 was about 1 amp. So is KMach's theory coming into play here? That the truck needs to be moving for it to work properly (or to test)?
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