TOHATSU BFT 250A, Service Manual

Page: 169 / 639

5-47
dummyhead dummyhead
FUEL SYSTEM
MIL ON BUT DOES NOT BLINK OR INDICATE DTC CODE
1. DLC short circuit inspection
Turn the combination switch OFF.
Disconnect the dummy connector from the DLC
.
Check for continuity between the DLC No.4
(Light green) terminal and engine ground.
Is the measurement within 4.75 – 5.25 V?
YES – GO TO STEP 2.
NO – Repair short in the main wire harness
between the ECM and the DLC.
2. MIL ON line short circuit inspection
Turn the combination switch OFF.
Disconnect the ECM connector A
.
Turn the combination switch ON and check the MIL.
Does the MIL go OFF?
YES – GO TO STEP 3.
NO – Repair short in the main wire harness
between the ECM and the MIL.
1
2
Bu
Bl
26
3
4
Y/Bl
Lg
Lg/Bl
Y/Bu
Bl
TRIM
ANGLE
SENSOR
DLC
FUSE/RELAY
JUNCTION BOX
3
2
16
11
1
Br/W
Y/Bu
Bl
22
24
13
25
Br/W
G
G
Lg
G
33
35
23 24 20 3 8
6
7
8
Br/Y
Bu
Y/Bl
Y/Bl
G
9
17
G
1 2 3
R/Bl Bu
1
G
3 2 1
W/R Br/Y
22
27
MAP SENSOR
29
Y/Bu
3
7
8
R/Bu
R/Bl
W/R
Bu
G
11
17
12
No.10
FUSE
(10A)
Y/Bl Y/Bl
No.9
FUSE
(15A)
WARNL
THL
PB
K-LINE
PG3
TRMA
VCC1
VCC2
IGP1
IGP2
PG2
VCC3
SG1
SG2
SCS
PG1
ECM
G G
Bl Bl Bl G G
GND1 GND4 GND2
5V
5V
5V
5V
5V
No.5
FUSE
(10A)
11
28
Y/Bl
4 6 7
W/Bl
6
3
1
2
R/Bu
W/Bl
R/Bu
W/Bl
INDICATOR
LAMP (MIL)
R/Bu R/Bu
PGM
LOAD
BAT
Bl/Y Bl/Y
COMBINATION
SWITCH
BAT
W/Bl W/Bl
Bl/Y Bl/Y
TP SENSOR
OPTION
JOINT CONNECTOR 1
Bl
Y
Bu
G
R
W
Black
Yellow
Blue
Green
Red
White Br
O
Lb
Lg
P
Gr
Brown
Orange
Light blue
Light green
Pink
Gray
DLC
SCS
(Light green)