TOHATSU BFT75A Service Manual page 171

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FUEL SYSTEM
2. CMP sensor power line open circuit inspection
Turn the combination switch OFF and disconnect
the CMP sensor 3P connector
Turn the combination switch ON.
Measure the voltage between the CMP sensor 3P
connector
(Yellow/Black) terminal and engine ground.
Does battery voltage exist?
YES
NO
3. CMP sensor signal line open or short circuit/
GND line open circuit inspection
Measure the voltage between the CMP sensor 3P
connector
(Green) terminal and No.2 (Green/Black) terminal.
Is the measurement within 4.75 – 5.25 V?
YES
NO
DTC 8-2 (ABNORMAL CMP SENSOR PULSE)
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the CMP sensor 3P connector
ECM connector A
and then reconnect them.
Clear the DTC (page 5-5).
• Continue the procedure if the DTC does not
clear.
Start the engine and check the DTC using the Dr.H.
Does the DTC 8-2 appear?
YES
NO
2. Cam pulser plate inspection
Turn the combination switch OFF.
Check the cam pulser plate (page 14-22).
Is the cam pulser plate correct?
YES
NO
5-30
main wire harness side No.3
– GO TO STEP 3.
– Repair open in the Yellow/Black wire. If
main wire harness is normal, inspect the
No.5 fuse circuit in the fuse box.
main wire harness side No.1
– Replace the CMP sensor with a new one
and recheck.
– • Repair open or short in the Green wire.
• Repair open in the Green/Black wire.
• If the main wire harness is normal,
replace the ECM with a new one, and
recheck.
, joint connector 1
– GO TO STEP 2.
– Temporary failure (disappears)
– Replace the CMP sensor with a new one
and recheck. If the CMP sensor is
replaced, but DTC 8-2 still appears,
replace the ECM with a new one and
recheck.
– Replace the cam pulser plate, and
recheck.
.
CMP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
IGP2
(Yellow/Black)
LG1
(Green/Black)
,
CMP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
TDC
(Green)