TOHATSU BFT75A Service Manual page 167

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FUEL SYSTEM
DTC 6-2 (EBT 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.
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).
• Continue the procedure if the DTC does not
clear.
Turn the combination switch ON.
Measure the EBT sensor voltage using the Dr.H.
Is the measurement within 0.08 – 4.92 V?
YES
NO
2. EBT sensor signal/GND
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
5-26
, ECM connector B
, and then reconnect
– Temporary failure (code
reappear)
– GO TO STEP 2.
line
main wire harness side No.1 (Red/
– Replace the EBT sensor with a new one
and recheck.
– Repair open in the Red/White wire or
Green wire. If the main wire harness is
normal, replace the ECM with a new one
and recheck.
,
,
does not
open circuit
EBT SENSOR 2P CONNECTOR
.
MAIN WIRE HARNESS SIDE
SG2
(Green)
TE
(Red/White)