APRILIA MSS Mana GT ABS Service Station Manual page 97

MSS Mana GT ABS
•
on the vehicle: on throttle body
•
on connector sensor: on throttle body
Electrical characteristics:
•
Resistance at 0°: 5.9 kΩ ± 5%
•
Resistance at 10°: 3.8 kΩ ± 5%
•
Resistance at 20°: 2.5 kΩ ± 5%
•
Resistance at 30°: 1.7 kΩ ± 5%
Pin-out:
1. 0-5 V signal: PIN 1
2. Ground connection: PIN 2
THE CONNECTION DIAGRAMS ARE IN THE ELECTRICAL SYSTEM SECTIONS; PAY ATTENTION
TO THESE DIAGRAMS AS THEY SHOW THE CONNECTOR/COMPONENT AS VIEWED FROM
THE CABLE HARNESS SIDE, THAT IS LOOKING AT THE CABLES WHEN GOING OUT OF THE
"MAIN" CABLE HARNESS AND INTO THE CONNECTOR/COMPONENT.
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING, CAREFULLY READ THE GENERAL TROU-
BLESHOOTING CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGINNING OF THE CHECK
AND CONTROL SECTION IN THE ELECTRICAL SYSTEM CHAPTER.
AXONE: FUEL INJECTION SYSTEM
PARAMETERS
Air temperature
Example value: 26° C
Temperature of the air taken in by the engine, measured by the sensor in the throttle body. This is not
the temperature indicated by the instrument panel.
ELECTRICAL ERRORS
air temperature sensor P0110 - open circuit, shorted to positive / shorted to negative.
Error cause
•
If the circuit is open, shorted to positive: excessive voltage has been detected at PIN 14 of
connector A (BROWN). If shorted to negative: voltage equal to zero has been detected.
Troubleshooting
•
If the circuit is open, shorted to positive: check the sensor connector and the Marelli control
unit connector. If OK, check sensor continuity: replace the sensor if not OK; if it is OK, check
continuity between PIN 14 of connector A (BROWN) and sensor PIN 1: restore cable har-
ness if there is not continuity; if it is OK, reconnect the control unit connector and, with key
set to key ON, check the continuity between the sensor connector PIN 2 and the vehicle
ground connection: if it is OK, it means that the error cause is that the cable is shorted to
positive and it is necessary to restore the cable harness between PIN 14 of the connector
A (BROWN) and sensor PIN 1; check the sensor connector and the Marelli control unit
Electrical system
ELE SYS - 97