Quote:
Originally Posted by Helmsman
I'd assume the EDC would generate a code at least if a damper broke!?
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It depends. but most likely not with a shock edc valve fault. The pwm driver can only monitor current flowing through each axle solenoids in series usually with a current sense amplifer at the PWM output stage. If either solenoids faults into open circuit, that would be detected. But if the valves gets stuck and no longer change the flow of oil in the shocks for edc the solenoids would still have the same current flowing and edc would not detect it.
The edc is also getting vertical acceleration data from each wheel. But that is certainly not used to diagnose anything less than a fully broken damper. So it's an open loop command after the solenoids.
The issue we are having is already telling me this system is not properly designed for comprehensive "in-use" self diagnosis.