LALUNA II
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FMI 9:Abnormal update rate.
FMIFault code explanation
9There is some fault on the EVC control pa-nel. The EVC control panel is not respon-ding on the AUX bus or the EVC control pa-nel has stopped sending data.
Fault indication
Warning is displayed in the tachometer/display.Orange lamp flashes in alarmpanel.
Symptom
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No button on the EVC control panel will function.
Circuit description
The EVC control panel gets its power supply from theSHCU. The EVC control panel communicates overthe auxiliary bus with the SHCU
FMI 9
Conditions for fault code
Communication fault with the EVC control panel.
Possible reason
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Open circuit in J1708 data bus wire from theSHCU, connector X3, pin 2 or 5 or both.
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Open circuit in the power supply on the auxiliarybus.
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Short circuit between J1708A and J1708B.
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Short circuit between J1708A, pin 5, and batterynegative wire on pin 3 or pin 4.
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Short circuit between any or both of the J1708 wi-res to battery positive wire on pin 1 or pin 6.
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Fault in EVC control panel.
Suitable action1
Check the power supply on the auxiliary bus.
2
Check data bus wiring between the EVC control paneland the SHCU. See “Manual fault tracing in bus ca-bles”.
3
Change the EVC control panel
