Yamaha MTN850-A 2017, Руководство по обслуживанию

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FUEL INJECTION SYSTEM
8-104
2 Connection of ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
Improperly connected

Con-
nect the coupler securely or
replace the wire harness.
Turn the main switch to “ON”,
and then check the condition of
the fault code using the mal-
function mode of the Yamaha
diagnostic tool.
Condition is “Recovered”

Go
to item 6 and finish the service.
Condition is “Detected”

Go to
item 3.
3 Wire harness continuity. Open or short circuit

Replace
the wire harness.
Between meter assembly cou-
pler and joint coupler.
light green/blue–light green/blue
light green/white–light
green/white
Between joint coupler and ECU
coupler.
light green/blue–light green/blue
light green/white–light
green/white
Turn the main switch to “ON”,
and then check the condition of
the fault code using the mal-
function mode of the Yamaha
diagnostic tool.
Condition is “Recovered”

Go
to item 6 and finish the service.
Condition is “Detected”

Go to
item 4.
4 Defective meter assembly. Replace the meter assembly. Turn the main switch to “ON”,
and then check the condition of
the fault code using the mal-
function mode of the Yamaha
diagnostic tool.
Condition is “Recovered”

Go
to item 6 and finish the service.
Condition is “Detected”

Go to
item 5.
5 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (Engine Control Unit)” on
page 8-157.
Service is finished.
6 Delete the fault code and check
that the engine trouble warning
light goes off.
Confirm that the fault code has
a condition of “Recovered”
using the Yamaha diagnostic
tool, and then delete the fault
code.
Event code No. U0155 or “Err”
Item
Multi-function meter: signals cannot be transmitted between the
ECU and the multi-function meter.