TOHATSU BFT75A Service Manual page 202

dummyhead dummyhead
MIL BLINKS 22 (2 LONG BLINKS AND 2 SHORT BLINKS) EOP SENSOR
ECM
5V
5V
Bl BLACK Br BROWN
Y YELLOW O ORANGE
Bu Lb LIGHT BLUE
BLUE
Lg
G GREEN LIGHT GREEN
R RED P PINK
W WHITE Gr GRAY
• When the MIL blinks 6, 7, 10, 22, 24, and 25 at the
same time, the ground line (SG2) is open.
• When the MIL blinks 7 and 22 at the same time, the
power line (VCC2) is open.
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the EOP sensor 3P connector
ECM connector A
and joint connector 2
them.
Clear the DTC (page 5-5).
Turn the combination switch OFF and connect the
SCS service check connector.
Turn the combination switch ON and check the
number of blinks of the MIL.
Does the MIL blink 22?
YES
NO
2. EOP sensor power line open circuit inspection
Turn the combination switch OFF and disconnect
the EOP sensor 3P connector
Turn the combination switch ON.
Measure the voltage between the EOP sensor 3P
connector
terminal and engine ground.
Is the measurement within 4.75 – 5.25 V?
YES
NO
29
POIL Y/R
VCC2
Br/W
SG2 G
28
, ECM connector B
, and then reconnect
– GO TO STEP 2.
– Temporary failure (code
reappear)
main wire harness side No.1 (Blue)
– GO TO STEP 3.
– Repair open in the Blue wire. If the main
wire harness is normal, replace the ECM
with a new one and recheck.
G G
12
21
23
JOINT CONNECTOR 2
,
,
does not
.
EOP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
FUEL SYSTEM
EOP
SENSOR
22
Bu
Y/R
G
VCC2
(Blue)
5-61