TOHATSU BFT75A Service Manual page 157

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FUEL SYSTEM
MIL IS ON BUT DTC IS 0 OR DOES NOT COMMUNICATE
REMOTE CONTROL type
COMBINATION
SWITCH
C47
Bl/Y Bl/Y
C52
W/Bl W/Bl
INDICATOR
LIGHT
C55
Bl/Y Bl/Y
C58
R/Bu R/Bu
TILLER HANDLE type
COMBINATION
SWITCH
C50
Bl/Y Bl/Y
C56
W/Bl W/Bl
INDICATOR
LIGHT
C58
Bl/Y Bl/Y
C61
R/Bu R/Bu
1. DLC power/GND line open circuit inspection
Turn the combination switch OFF and disconnect
the Dr.H.
Turn the combination switch ON.
Measure the voltage at the DLC
(Yellow/Black) terminal and No.2 (Black) terminal.
Does battery voltage exit?
YES
NO
5-16
TP SENSOR
FUSE
ECM
(15 A)
1
Y
29
PG4
G
Bu
WARNL
R/Bu
THL
R/Bl
12 V
PB
W/R
K-LINE
Bu
PG3
G
TRMA
Y/Bu
5 V
VCC1 Br/Y
5 V
VCC2
Bu
IGP1
Y/Bl
LOAD
IGP2
Y/Bl
PG1
BAT G
5 V
VCC3
Br/W
SG1
G
5 V
SG2
G
SCS
Lg
BAT
LG1 Bu
PG2
G
WARNL
LG2
Bu
28
39 4
R/Bu R/Bu
42 5
W/Bl W/Bl
LOAD
BAT
BAT
WARNL
4
R/Bu
5
W/Bl
– GO TO STEP 2.
– • Repair open in the Yellow/Black wire
between the No.4 fuse and DLC.
• If main wire harness is normal, inspect
the No.4 fuse circuit in the fuse box
(page 10-14).
MAP SENSOR
No.2
FUSE
(10 A)
2 3 1 2 3
21 26
R/Bl G Br/Y W/R G
W/Bl
Bu
Bl
Bl Bl
Bl
Bl Bl Bl
GND5 GND4 GND7 GND6
3 2 16
6
JOINT CONNECTOR 1
No.3
GND
(Black)
No.4
FUSE
(10 A)
Y
3
Bu
Bl
DLC
Y/Bl
Lg
12
JOINT
G
CONNECTOR 2
G
TRIM
ANGLE
15 SENSOR
Br/W Lg/Bl
Y/Bu
Bl
Y Y/Bl
13
14
Bl BLACK Br BROWN
Y YELLOW O ORANGE
Bu BLUE Lb LIGHT BLUE
G GREEN Lg LIGHT GREEN
R RED P PINK
W WHITE Gr GRAY
DLC
IGP3
(Yellow/Black)