check the correct sensor resistance: if it is not OK, replace the sensor; if it is OK, check
continuity of the brown cable between the sensor connector and PIN 18 of the instrument
panel connector: If not OK, restore the cable harness; if OK, with key set to ON, check if
there is voltage at the sensor connector PIN 1: if there is no voltage, replace the instrument
panel; if there is approximately 12V, restore the cable harness (there is a short circuit in the
battery). If there is 5V voltage, connect a 10 kOhm resistance to PIN 1 of the sensor con-
nector and to the vehicle ground connection: if, with key set to ON, the voltage measured
upstream the resistance decreases, replace the instrument panel. If voltage continues to be
approximately 5V, restore the pink cable (there is a short circuit at + 5V).
Notes
If a short circuit to ground is detected at PIN 9 of the instrument panel connector, the display will show
a full scale air temperature indication of 60 °C (140 °F).
Check the ground insulation of the sensor connector pink cable: if there is a connection, restore the
cable harness; if it is earth insulated, check that sensor resistance is correct: if it is not OK, replace the
sensor; if it is OK, replace the instrument panel.
RUN/STOP switch
Function
It tells the control unit if the driver wishes to enable
engine start-up or to keep the engine running.
Operation / Operating principle
If the driver wants to shut off the engine or to dis-
able engine start-up, the switch should be open,
i.e. the Marelli control unit should not detect volt-
age at PIN 27 of the BLUE connector.
Level in electrical circuit diagram:
start-up ena-
bling switches.
Location:
•
right light switch.
•
connector: right side, near the coil.
Electrical characteristics:
•
STOP position: the circuit is open
•
RUN position: closed circuit (continui-
ty)
PIN:
Electrical system
Norge GT 8v
ELE SYS - 126
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