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Electrical system
Error cause
•
No signal is received from the injection ECU.
Troubleshooting
•
Check the pins 66 and 80 of the Vehicle connector of the Marelli control unit, vehicle-engine
connector pins B2 and B3 and CLF control unit connector pins 8 and 9. If not OK, restore.
If OK, with key OFF disconnect the following: a) CLF control unit connector, b) vehicle-
engine connector and check the continuity across vehicle-engine connector pin B2 and CLF
control unit connector pin 9. If NOT OK, replace the vehicle cable harness; if OK, check the
continuity across vehicle-engine connector pin B3 and CLF control unit connector pin 8. If
NOT OK, change the cable harness; if OK, attach CLF control unit connector and disconnect
the Vehicle connector of the Marelli ECU. Check the continuity across vehicle-engine con-
nector pin B2 and pin 80 of the Vehicle connector of the Marelli ECU. If NOT OK, replace
engine cable harness; if OK, check the continuity across vehicle-engine connector pin B3
and Marelli ECU connector pin 66. If NOT OK, change cable harness; if OK, check for the
correct power supply (12V) at pins 42 and 52, and ground at pin 5 of the Engine connector
of the Marelli ECU. If NOT OK, restore the cable harness; if OK, replace the Marelli ECU.
Failed CAN reception from instrument panel C1301
Error cause
•
No signal is received from the instrument panel.
Troubleshooting
•
Check the pins 26 and 27 of the instrument panel connector, and CLF control unit connector
pins 8 and 9. If not OK, restore. If OK, with key OFF disconnect the following: a) CLF control
unit connector, b) instrument panel connector and check the continuity across instrument
panel connector pin 26 and CLF control unit connector pin 9. If NOT OK, replace the vehicle
cable harness; if OK, check the continuity across instrument panel pin 27 and CLF control
unit connector pin 8. If NOT OK, replace the cable harness; if OK, check for the correct
power supply (12V) at pins 1 and 11 and ground at pins 38, 39 3 40 of the instrument panel
connector. If NOT OK, restore the cable harness; if OK, replace the instrument panel.
CAN line mute mode C1302
Error cause
•
No signal is received from the CAN line, possible line break.
Troubleshooting
•
Check the pins 2 and 3 of the inertia sensor platform (Sensor box) connector, and CLF
control unit connector pins 8 and 9. If not OK, restore. If OK, with key OFF disconnect the
following: a) CLF control unit connector, b) inertia sensor platform (Sensor box) connector
and check the continuity across inertia sensor platform (Sensor box) connector pin 2 and
ELE SYS - 246
RSV4 Factory a-PRC
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