TOHATSU BFT75A Service Manual page 177

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FUEL SYSTEM
3. EOP sensor power line open circuit inspection
Measure the voltage between the EOP sensor 3P
connector
terminal and engine ground.
Is the measurement within 4.75 – 5.25 V?
YES
NO
DTC 22-2 (EOP SENSOR VOLTAGE IS TOO HIGH)
• When the DTC code 6-2, 7-2, 10-2, 22-2, 140-2, and
141-2 are indicated at the same time, the ground line
(SG2) is open.
• When the DTC code 7-1 and 22-1 or 22-2 are
indicated 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).
• Continue the procedure if the DTC does not
clear.
Turn the combination switch ON.
Measure the EOP sensor voltage using the Dr.H.
Is the measurement within 0.5 – 4.5 V?
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
5-36
main wire harness side No.1 (Blue)
– Replace the EOP sensor with a new one
and recheck.
– Repair open in the Blue wire. If the main
wire harness is normal, replace the ECM
with a new one and recheck.
, ECM connector B
, and then reconnect
– Temporary failure (code
reappear)
– GO TO STEP 2.
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.
EOP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
,
,
does not
.
EOP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
VCC2
(Blue)
VCC2 (Blue)