Signals Cannot Be Transmitted Between The Ecu And Multi-Function Meter - Yamaha R1 Series 2015 Service Manual

Fault code No. 89 (Yamaha diagnostic tool)
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
Item Probable cause of
malfunction and check
1 Connection of meter assembly
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).
2 Connection of wire harness
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).
3 Wire harness continuity.
4 Defective meter assembly.
5 Malfunction in ECU.
89 (Yamaha diagnostic tool)
Err (multi-function meter display)
Multi-function meter: signals cannot be transmitted between the
ECU and the multi-function meter.
Able to start engine
Able to drive vehicle
—
—
—
Maintenance job
Improperly connected
nect the coupler securely or
replace the wire harness.
Improperly connected
nect the coupler securely or
replace the wire harness.
Open or short circuit
the wire harness.
Between ECU coupler and joint
coupler.
blue/white–blue/white
blue/black–blue/black
Between joint coupler and meter
assembly coupler.
blue/white–blue/white
blue/black–blue/black
Replace the meter assembly.
Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-180.
8-100
FUEL INJECTION SYSTEM
Confirmation of service com-
Con- Turn the main switch to "ON".
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 2.
Con- Turn the main switch to "ON".
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 3.
Replace Turn the main switch to "ON".
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 4.
Turn the main switch to "ON".
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 5.
pletion