TOHATSU BFT75A Service Manual page 193

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FUEL SYSTEM
3. CKP sensor signal line open or short circuit/
GND line open circuit inspection
Measure the voltage between the CKP sensor 3P
connector
terminal and No.2 (Green/Black) terminal.
Is the measurement within 4.75 – 5.25 V?
YES
NO
4. Crank pulser plate inspection
Turn the combination switch OFF.
Check the crank pulser plate (page 7-13).
Is the crank pulser plate correct?
YES
NO
5-52
main wire harness side No.1 (Blue)
– GO TO STEP 4.
– • Repair open or short in the Blue wire
• Repair open in the Green/Black wire
• If the main wire harness is normal,
replace the ECM with a new one, and
recheck.
– Replace the CKP sensor with a new one
and recheck. If the CKP sensor is
replaced, but MIL blinks 4, replace the
ECM with a new one and recheck.
– Replace the alternator rotor and recheck.
CKP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
LG1
(Green /Black)
CRK
(Blue)