Function
It tells the control unit if the driver wishes to enable engine start-up or to keep the engine running.
Operating principle
If the driver wants to shut off the engine or to disable engine start-up, the switch should be open, i.e. the Marelli control unit should not detect voltage at VEHICLE connector PIN 26.
Level in wiring diagram: Start-up enabling switches.
Location:
- on the vehicle: right light switch
- connector: inside the rubber protection located between the water radiator and the fuel tank, to the right.
Electrical characteristics:
- STOP position: the circuit is open
- RUN position: closed circuit (continuity)
Pin-out:
- 1. Yellow/grey cable: -
- 2. Red/black cable: Voltage 12V
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Caution! Before carrying out any troubleshooting, carefully read the general troubleshooting concepts for electrical devices at the beginning of the check and control section in the electrical system chapter.
Axone: statuses
Run / stop switch
Example value: Run/Stop
Indication on Axone always STOP: disconnect the connector and, with the switch set to RUN, check if there is continuity toward the switch of the two yellow/grey and red/black cables: if there is no continuity, replace the sensor; if there is, check the connector. If not OK, restore the cable harness; if it is OK, with key set to ON, check if there is voltage to the red/black cable: if there is no voltage, restore the cable harness; if there is, check the yellow/grey cable earth insulation: if there is continuity to ground, restore the cable harness; if it is correct, take the key to OFF and check the VEHICLE connector is in good conditions and the continuity of the grey/yellow cable between the sensor in question and the VEHICLE connector PIN 26: if not OK, restore the cable harness; if OK, replace the Marelli control unit.
Indication on Axone always RUN: disconnect the connector and, with the switch set to STOP, check if there is continuity between the two cables of the switch: if there is continuity, replace the switch; if there is not, it means that, with key set to ON, the yellow/grey cable is shorted to positive: restore the cable harness.