Yamaha FJR1300(S), Supplementary Service Manual

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FI

FUEL INJECTION SYSTEM

Sensor operation data display verification table

NOTE:

• Check the intake air temperature and coolant temperature as close as possible to the area in

which the respective sensor is mounted.

• If it is not possible to check the intake temperature, use the ambient temperature as reference

(use the compared values for reference).

Diag code

Item

Description of action

Data displayed on meter 

(reference value)

01

Throttle angle

Displays the throttle angle.
• Check with throttle fully closed.
• Check with throttle fully open.

0 ~ 125 degrees
• Fully closed position (15 ~ 17)
• Fully open position (97 ~ 100)

03

Pressure difference 
(atmospheric pres-
sure - intake air pres-
sure)

Displays the pressure difference (atmospheric pressure - 
intake air pressure).
Engine stop switch is on.
* Generate the pressure difference by cranking the engine 

with the starter, without actually starting the engine.

Before cranking: Atmospheric 
pressure (standard pressure is 
760 mmHg)
After cranking: Value is lower 
than the atmospheric pressure

05

Intake air tempera-
ture

Displays the intake air temperature.
*  Check the temperature in the air cleaner case.

Compare it to the value dis-
played on the meter.

06

Coolant temperature

Displays the coolant temperature.
* Check the temperature of the coolant.

Compare it to the value dis-
played on the meter.

07

Vehicle speed pulse

Displays the accumulation of the vehicle pulses that are gen-
erated when the tire is spun.

(0 ~ 999; resets to 0 after 999)
OK if the numbers appear on 
the meter.

08

Lean angle cut-off 
switch

Displays the lean angle cut-off switch values.

Upright: 0.4 ~ 1.4 V
Overturned: 3.8 ~ 4.2 V

09

Fuel system voltage 
(battery voltage)

Displays the fuel system voltage (battery voltage).
Engine stop switch is on.

0 ~ 18.7 V
Normally, approximately 12.0 V

20

Sidestand switch

Displays that the switch is ON or OFF. (When the gear is in a 
position other than neutral.)

Stand retracted: ON
Stand extended: OFF

21

Neutral switch

Displays that the switch is ON or OFF.

Neutral: ON
In gear: OFF

60

E2PROM fault code 
display

• Transmits the abnormal portion of the data in the E2PROM 

that has been detected as a self-diagnostic fault code 44.

• If multiple malfunctions have been detected, different codes 

are displayed at 2-second intervals, and this process is 
repeated.

(01 ~ 04) Displays the cylinder 
number.
(00) Displays when there is no 
malfunction.

61

Malfunction history 
code display

• Displays the codes of the history of the self-diagnosis mal-

functions (i.e., a code of a malfunction that occurred once 
and which has been corrected).

• If multiple malfunctions have been detected, different codes 

are displayed at 2-second intervals, and this process is 
repeated.

11 ~ 50
(00) Displays when there is no 
malfunction.

62

Malfunction history 
code erasure

• Displays the total number of codes that are being detected 

through self diagnosis and the fault codes in the past his-
tory.

• Erases only the history codes when the engine stop switch 

is turned from OFF to ON. If the engine stop switch is ON, 
turn it OFF once, and then turn it back ON.

00 ~ 21
(00) Displays when there is no 
malfunction.

70

Control number

• Displays the program control number.

00 ~ 255