•
If potentiometer signal is above maximum threshold: voltage of the maximum end of stroke
position (open valve) outside the foreseen field has been detected. If potentiometer signal
is below maximum threshold: voltage of the minimum end of stroke position (closed valve)
outside the foreseen field has been detected. If time is excessive: excessive time for stop
search has been detected (possible mechanical problem of the valve, of the motor or cables
not connected). If research has not been carried out or wrong stroke: this symptom may be
caused when a new instrument panel is installed and the stop self-acquisition procedure is
not carried out or if the stop between minimum and maximum is too short or too long.
Troubleshooting
•
If potentiometer signal is above maximum threshold: during adjustment "Exhaust valve self-
acquisition", voltage of maximum opening end of stroke outside the foreseen field is
detected. Check correct tensioning of the two valve cables.
•
If potentiometer signal is below maximum threshold: during adjustment "Exhaust valve self-
acquisition", voltage of minimum opening end of stroke outside the foreseen field is detected.
Check correct tensioning of the two valve cables.
•
If time is excessive: check that the valve cables are in voltage: if they are not in voltage, fix
them; if they are OK, check that mechanical rotation of the exhaust valve is without friction
or deceleration: if they are not OK, restore normal valve rotation; if they are OK, check motor
electrical characteristics: if they are not OK, replace the motor; if they are OK, check valve
connector and instrument panel connector (with special attention to possible oxidation): if
they are not OK, restore; if they are OK, replace the electrical motor. Or also free cables.
•
If research has not been carried out or wrong stroke: adjust "Exhaust valve self-acquisition"
if the stop self-acquisition procedure has not been carried out after installation of new in-
strument panel. If the instrument panel is not new, check correct calibration of the cables
and if correct, check that there is not an obstacle for correct rotation of the valve.
Exhaust valve engine P0192
•
open circuit, thermal overload protection, shorted to negative, shorted to positive or short
circuit between both cables.
Error cause
•
If the circuit is open: too low current has been detected at PIN 36 - 37 of the instrument panel
connector. If thermal overload protection: instrument panel fault. If shorted to negative: volt-
age equal to zero has been detected. If shorted to positive or short circuit between both
cables: excessive voltage has been detected.
Troubleshooting
•
If the circuit is open: may occur due to loosen cables, therefore, make sure that cables are
tight: if not tight, fix them; if cables are OK, check valve connector and instrument panel
RSV4 R Electrical system
ELE SYS - 211
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