Yamaha WaveRunner FZR-GX1800 Service Manual page 379

TRBL
SHTG
YDIS
7. ECM record data graph: When a malfunction occurs in the engine control system, 4 seconds
(2 seconds before and after the malfunction) of recorded data is saved in the ECM. This data
can be displayed on a graph using the "ECM record data graph" of the Data logger function.
When the communication cable is used to connect a computer to the ECM, the ECM record
data can be saved and viewed on the computer.
The saved ECM record data can also be viewed offline.
Items: FZR, FZS
1 Engine speed
2 Accelerator position
(*1)
sensor 1
3 Accelerator position
(*2)
sensor 2
4 Steering sensor
5 Throttle position sensor
(*3)
1
6 Throttle position sensor
(*4)
2
7 Intake pressure
8 Battery voltage
9 Target TPS voltage
(*1)
: APS 1
(*2)
: APS 2
(*3)
: TPS 1
(*4)
: TPS 2
(*5)
: Intake air pressure
(*6)
: Target TPS voltage
This item shows the target output voltage of the TPS.
This value is the control voltage that the ECM requires to set the target opening angle of the throttle
valve.
(*7)
: Reference TPS voltage
This item shows the criterion output voltage of the TPS.
This value is used to detect the TPS output voltage during engine operation.
(*8)
: Reference APS voltage
This item shows the criterion output voltage of the APS.
This value is used to detect the APS output voltage when the throttle lever is opened.
(*9)
: Target TPS voltage for Idle Speed Control
ECM controls the engine idle speed by using the throttle valve attached to the TPS.
This target voltage is used by the ECM to achieve the target opening angle of the throttle valve at
the engine idle speed.
(*10)
: Engine stop mode with switch
(*11)
: Engine shut-off switch
(*12)
: Main and fuel pump relay
(*13)
: Thermoswitch
(*14)
: Oil pressure switch
TIP
• To display the data and graphs, refer to the YDIS (Ver. 1.30 or Ver. 1.32) Instruction Manual.
• All of the items (1–27) will be displayed in YDIS. However, because the FZR and FZS are not
equipped with the functions for items 17 and 19, no data will be recorded for these items.
10 Ref. TPS voltage
11 Ref. acc. pos. sensor
voltage
12 Target TPS voltage for
(*9)
ISC
13 Engine stop mode
14 Engine start mode
15 Engine stop mode with
(*10)
SW
(*5)
16 OTS mode
17 Cruise assist mode
(*6)
18 Reverse mode
(*7)
19 No-Wake mode
20 Low-RPM mode
(*8)
21 Engine stop lanyard
22 Main relay
23 ETV relay
24 Overheat
25 Oil press switch
26 Warning
27 ETV limit
9-4
E
(*11)
switch
(*12)
(*13)
thermoswitch
(*14)
1
2
3
4
5
6
7
8
9