Benelli 2009 TREK1130, Workshop Manual

Page: 565 / 582

DIAGNOSTICS
7 53
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 2/A4
Ok Disconnect the vent and proceed with test 2
Faulty Repair the fault, proceed with test 5
2) Check the cable for short circuit
- pin 2/A4 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 cables fault, proceed
with test 5
4) Check the cable for short circuit:
- pin 2/A4 of ECM to pin 1/RO/BI
injection relay of ECM
Ok Proceed with test 5
Short circuit
Locate and repair the cables fault, proceed
with test 5
3) Check the continuity of the cable:
- Vent cable with electric fans of
ECM
Ok Proceed with test 4
Open circuit
RESULT PRECAUTION
LOCATION TEST
FAULT CODE
P1552 Open or short circuit to the mass Check and take note of the sensor data of the
diagnostics tool (see Axone or Bendia instruction
manual).
Ensure that the vent connector is inserted
correctly.
Disconnect the ECM and proceed with the
location 1 test.
P1553 Short circuit to positive (+) pole
battery
Disconnect the vent and proceed with test 4.
POSSIBLE CAUSE PRECAUTION
COOLING VENT -WALBRO ECU 1
ELEC