TOHATSU BFT75A Service Manual page 194

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MIL BLINKS 6 (EBT SENSOR)
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.
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the EBT sensor 2P 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 6?
YES
NO
2. EBT sensor signal line open or short circuit/
GND line open circuit inspection
Turn the combination switch OFF and disconnect
the EBT sensor 2P connector
Turn the combination switch ON.
Measure the voltage between the EBT sensor 2P
connector
White) terminal and No.2 (Green) terminal.
Is the measurement within 4.75 – 5.25 V?
YES
NO
ECM
5V
29
TE R/W
SG2
28
, ECM connector B
, and then reconnect
– GO TO STEP 2.
– Temporary failure (code
reappear)
main wire harness side No.1 (Red/
– Replace the EBT sensor with a new one
and recheck.
– • Repair open or short in the Red/White
wire
• Repair open in the Green wire
• If the main wire harness is normal,
replace the ECM with a new one, and
recheck.
EBT
SENSOR
20
R/W
G
G
G
12
21
24
JOINT CONNCTOR 2
,
,
does not
.
EBT SENSOR 2P CONNECTOR
MAIN WIRE HARNESS SIDE
SG2
(Green)
FUEL SYSTEM
G
TE
(Red/White)
5-53