TOHATSU BFT75A Service Manual page 195

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FUEL SYSTEM
MIL BLINKS 7 (TP SENSOR)
ECM
5 V
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
• 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 TP sensor 3P connector
ECM connector A
and joint connector 2
them.
Clear the DTC (page 5-5).
Start the engine.
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 7?
YES
NO
2. TP
inspection
Turn the combination switch OFF and disconnect
the TP sensor 3P connector
Turn the combination switch ON.
Measure the voltage between the TP sensor 3P
connector
terminal and No.3 (Green) terminal.
Is the measurement within 4.75 – 5.25 V?
YES
NO
5-54
29
THL R/Bl
VCC2 Bu
SG2 G
28
, ECM connector B
, and then reconnect
– GO TO STEP 2.
– Temporary failure (code
reappear)
sensor power/GND line
main wire harness side No.1 (Blue)
– GO TO STEP 3.
– Repair open in the Blue wire or Green
wire. If the main wire harness is normal,
replace the ECM with a new one and
recheck.
G G
12
21
15
JOINT
CONNECTOR 2
,
,
does not
open circuit
TP SENSOR 3P CONNECTOR
.
MAIN WIRE HARNESS SIDE
SG2
(Green)
TP
SENSOR
21
Bu
R/Bl
G
VCC2
(Blue)