Yamaha Raptor 700R 2009, Service Manual

Page: 322 / 374

FUEL INJECTION SYSTEM
8-33
Communication error with the meter
EAS27400
TROUBLESHOOTING METHOD
The engine operation is not normal and the
engine trouble warning light comes on.
1. Check:
• Fault code number
▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
a. Check the fault code number displayed on
the meter.
b. Identify the system with the malfunction. Re-
fer to “Self-Diagnostic Function table”.
c. Identify the probable cause of malfunction.
Refer to “Diagnostic code table”.
▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲▲▲
2. Check and repair the probable cause of mal-
function.
3. Perform ECU reinstatement action.
Refer to “Reinstatement method” of table in
“TROUBLESHOOTING DETAILS”.
4. Turn the main switch to “OFF” and back to
“ON”, then check the fault code number is not
displayed.
TIP
If fault codes are displayed, repeat steps (1) to
(4) until no fault code number is displayed.
5. Erase the malfunction history in the diagnos-
tic mode. Refer to “Sensor operation table
(Diagnostic code No.d62)”.
The engine operation is not normal but the
engine trouble warning light does not come
on.
1. Check the operation of following sensors and
actuators in the Diagnostic mode. Refer to
“Sensor operation table” and “Actuator oper-
ation table”.
If a malfunction is detected in the sensors or
actuators, repair or replace all faulty parts.
If no malfunction is detected in the sensors
and actuators, check and repair inner parts of
the engine.
EAS27441
DIAGNOSTIC MODE
It is possible to monitor the sensor output data or check the activation of actuators without connecting
the measurement equipment by simply switching the meter indication from the normal mode to the di-
agnostic monitoring mode.
Fault
code No.
Item Symptom
Able / un-
able to start
Able / un-
able to
drive
Er-1
ECU internal malfunc-
tion
(output signal error)
No signals are received from the
ECU.
Unable Unable
Er-2
ECU internal malfunc-
tion
(output signal error)
No signals are received from the
ECU within the specified duration.
Unable Unable
Er-3
ECU internal malfunc-
tion
(output signal error)
Data from the ECU cannot be re-
ceived correctly.
Unable Unable
Er-4
ECU internal malfunc-
tion
(input signal error)
Non-registered data has been re-
ceived from the meter.
Unable Unable
Fault code No. YES Fault code No. NO
Check and repair.
Refer to “TROUBLE-
SHOOTING DE-
TAILS” on page 8-38.
Monitor the opera-
tion of the sensors
and actuators in the
diagnostic mode. Re-
fer to “Sensor opera-
tion table” and
“Actuator operation
table”. Check and repair.
Refer to “Self-diag-
nostic function table”.
d01: Throttle position sensor (throttle angle)
d30: Ignition coil
d36: Fuel injector