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02-04-2021, 09:50 PM
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Lukeyson
 
Join Date: Mar 2005
Location: Maitland, NSW
Posts: 2,580
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<Cough> Cruise Control Jewel </Cough> ....
Lukeyson
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If the human brain was simple enough to understand, we'd be too simple to understand it. |
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07-04-2021, 10:18 PM
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Regular Member
Join Date: Jan 2005
Posts: 194
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Quote:
I think I’ll make a couple of typical Ford Focus/Mondeo/Fiesta etc resistor arrays to mimic the “Cruise On” button press, then try them on the couple of pins that aren’t “occupied” with anything according to the wiring diagrams. We’d still need to find the bit to flip if any of those button presses create a thing... The way the system is described for a Focus retrofit is that the buttons get added, then the cluster gets stimulated to push a CAN message about the button press, but because it’s not “enabled” no action is taken. It may be like your power steering discovery that the basic code exists in the cluster, but was never implemented. There’s sufficient evidence that the cluster has a set of messages that relate to both current throttle position and throttle demand and it wouldn’t be much of a stretch to imply that the cluster under a Cruise On/Enabled situation would become the the intercept point to marry up current/target speed, throttle position and required throttle position. |
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Re: WQ Fiesta XR4 Diagnostics/OBD2 Reverse Engineering
Hybrid Mode