TOHATSU BFT250A Service Manual page 166

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FUEL SYSTEM
DTC 142-1 (ABNORMAL EOP SWITCH (HIGH PRESSURE SIDE))
ECM
12 V
SG2
OPSH
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the EOP switch (High pressure side) 2P
connector
wire 6P connector
and then reconnect them.
Clear the DTC (page 5-6).
• Continue the procedure if the DTC does not
clear.
Turn the combination switch ON.
Check the EOP switch (high pressure side) signal
with the HDS.
Is there the OFF signal?
YES
NO
2. EOP switch (high pressure side) line open
circuit inspection
Turn the combination switch OFF and disconnect
the EOP switch (high pressure side) 2P connector
Turn the combination switch ON.
Measure the voltage between the EOP switch (high
pressure side) 2P connector
harness side No.1 (Yellow/Red) terminal and No.2
(Green) terminal.
Does battery voltage exist?
YES
NO
5-44
JOINT CONNECTOR 1
3 6
G G
Y/R Y/R
, ECM connector B
, joint connector 1
– Temporary failure (code
reappear).
– GO TO STEP 2.
.
– Replace the EOP switch (high pressure
side) with a new one and recheck.
– Repair open in the main wire harness
between the ECM and EOP switch (high
pressure side). If main wire harness is
correct, replace the ECM with a new one
and recheck.
G/R
Y/R
, switch
does not
EOP SWITCH (HIGH PRESSURE SIDE)
2P CONNECTOR MAIN WIRE HARNESS SIDE
main wire
EOP
SWITCH (HIGH)
G/R
Y/R
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
OPSH
(Yellow/Red)
SG2
(Green)