Yamaha YZ Power Tuner Manuel Du Propriétaire page 35

Problem
Setting data cannot be sent to
the ECU
Setting data cannot be down-
loaded from the ECU
Engine condition cannot be
checked
Confirmation item
Is the communication coupler
G
connected securely to the wire
harness of the vehicle?
Did you try to send the data while
G
the engine was running?
Did you try to send the data be-
G
fore saving it?
Is error code 44 displayed?
G
(ECU internal memory is dam-
aged.)
Are you using discharged batter-
G
ies?
Is the communication coupler
G
connected securely to the wire
harness of the vehicle?
Did you try to download the data
G
while the engine was running?
Is error code 44 displayed?
G
(ECU internal memory is dam-
aged.)
Are you using discharged batter-
G
ies?
Is the communication coupler
G
connected securely to the wire
harness of the vehicle?
Are you using discharged batter-
G
ies?
Troubleshooting
See page
6
18
16
29
5
6
20
29
5
6
5
28