TOHATSU BFT115A Service Manual page 150

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
29
Clear the DTC (page 5-6).
• Continue the procedure if the DTC does not
clear.
Start the engine and check the DTC using the HDS.
Does the DTC 8-2 appear?
YES
NO
2. CMP sensor installation inspection
Turn the combination switch OFF.
Check the installation of the CMP sensor (page 5-
119).
Is the CMP sensor installation correct?
YES
NO
5-32
35
main wire harness side No.3
35
– GO TO STEP 3.
– Repair open in the Yellow/Black wire. If
main wire harness is normal, inspect the
No.9 fuse circuit in the fuse/relay junction
box (page 10-14).
main wire harness side No.1
35
– 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.
, and joint connector 1
12
, and then reconnect them.
– 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.
– Install the CMP sensor properly, and
recheck.
.
IGP2
(Yellow/Black)
LG1
(Green/Black)
,
35
CMP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
35
CMP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
35
TDC
(Green)