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Electrical system
Pressed/Released/Invalid data due to open circuit error/Invalid data due to short circuit error.
"-" button:
Pressed/Released/Invalid data due to open circuit error/Invalid data due to short circuit error
DIAGNOSIS INSTRUMENT: ELECTRICAL ERRORS
"+" button sensor P0720:
•
Open contacts/Closed contacts.
Error cause:
With open contacts, a voltage over zero is detected at the same time at PIN 5 and PIN 13 of the
instrument panel. With closed contacts, zero voltage is detected at the same time at PIN 5 and PIN 13
of the instrument panel.
Troubleshooting:
The instrument panel expects to find, at either of the two PINs, a voltage over approx. 1 V and at the
same time a voltage below 1 V at the other PIN; if this does not occur, the instrument panel outputs the
information to the control unit that shows this error. Indication on Navigator "Invalid data due to short
circuit error"; CASE 1): if this status is displayed with control not activated only, it means that a voltage
below 1V, instead of battery, is detected at PIN 5 of the instrument panel; disconnect the "+" button
connector and read voltage at PIN 5 of the instrument panel: if voltage is below 1 V, it means that on
the white cable there is a short circuit to ground; if voltage is above 1 V (approximately battery voltage),
replace the "+" button sensor. CASE 2): if this status is displayed only with control activated, it means
that at that moment a voltage below 1V, instead of battery, is being detected at PIN 13 of the instrument
panel; disconnect the gearshift control connector and read voltage at PIN 13 of the instrument panel:
if voltage is below 1 V, it means that on the brown cable there is a short circuit to ground; if voltage is
above 1 V (approximately battery voltage), replace the "+" button sensor. Indication on Navigator "In-
valid data due to open circuit error"; CASE 1): if this status is displayed only with control not activated,
it means that circuit from PIN 13 to PIN 30 of the instrument panel is interrupted or that PIN 30 is not
grounded: check the instrument panel connector and the "+" button connector: if they are not OK,
restore; if they are OK, check continuity on the brown cable: if it is not OK, restore; if it is OK, check
continuity on the black cable from the "+" button connector to PIN 30 of the instrument panel: if it is not
OK, restore; if it is OK, check continuity of the "+" button from the "+" button connector (between black
cable and green cable): if it is not OK, change the control; if it is OK, check, with key to ON, that the
black cable is not grounded and then change the instrument panel. CASE 2): if this status is displayed
with control activated only, it means that circuit from PIN 5 to PIN 30 of the instrument panel is inter-
rupted: check the instrument panel connector and the "+" button connector: if they are not OK, restore;
if they are OK, check continuity on the white cable: if it is not OK, restore; if it is OK, check, with control
activated, that there is not continuity of the "+" button from the "+" button connector (between black
cable and yellow cable) and then replace the control.
"-" button sensor P0721
ELE SYS - 232
RSV4 Factory a-PRC
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