Benelli 2009 TREK1130, Workshop Manual

Page: 559 / 582

DIAGNOSTICS
7 47
5) Connect the wiring, reset the fault
code and activate the engine to
check the fault has been eliminated.
Ok Activity Performed - end the test
The fault remains Contact Benelli after-sales assistance
TEST
1) Check the integrity of the terminal
and the cable:
- pin ECM 1/B5
- pin ECM 1/B7
- pin ECM 1/B3
Ok Disconnect the sensor and proceed with test 2
Faulty Repair the fault, proceed with test 5
2) Check if the cable is in short circuit:
- pin 1/B7 of ECM to the mass
Ok Proceed with test 3
Short circuit
Locate and repair the wiring fault, proceed
with test 5
Locate and repair the wiring fault and proceed
with test 5
4) Check if the cable is in short circuit:
- pin 1/B7 of ECM to pin 1/B5 of ECM
- pin 1/B7 of ECM to pin 1/B3 of ECM
Ok
Replace the position sensor of the throttle
bodies unit, proceed with test 5
Short circuit
Locate and repair the wiring fault, proceed
with test 5
3) Check the continuity of the cable:
- pin 1/B3 of ECM to pin 3 of sensor
- pin 1/B7 of ECM to pin 2 of sensor
- pin 1/B5 of ECM to pin 1 of sensor
Ok Proceed with test 4
Open circuit
RESULT PRECAUTION
LOCATION TEST
FAULT CODE
P0122 Low sensor input voltage Check and take note of the sensor data of the
diagnostics tool (see Axone or Bendia instruction
manual)
P0123 High sensor input voltage Ensure that the sensor connector is inserted
correctly. Disconnect the ECM and proceed with
the location 1 test.
POSSIBLE CAUSE PRECAUTION
POSITION SENSOR OF THE THROTTLE BODIES UNIT (POTENTIOMETER) - WALBRO
ECU 1
ELEC