TOHATSU BFT115A Service Manual page 177

3. MAP sensor signal open or short circuit/GND
line open circuit inspection
Measure the voltage between the MAP sensor 3P
connector
30
(White/Red) terminal
terminal.
Is the measurement within 4.75 – 5.25 V?
YES – Replace the MAP sensor with a new one
and recheck.
NO – • Repair open or short in the White/Red
wire.
• Repair open in the Green/Red wire.
• If the main wire harness is normal,
replace the ECM with a new one, and
recheck.
MIL BLINKS 4 (CKP SENSOR)
ECM
12
5 V
Bu
CRK
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the CKP sensor 3P connector
ECM connector A
, and then reconnect them.
29
Clear the DTC (page 5-6).
Start the engine.
Turn the combination switch OFF and connect the
SCS service check connector.
Turn the combination switch ON and check the
number of blinks of the MIL.
Does the MIL blink 4?
YES – GO TO STEP 2.
NO – Temporary
reappear)
main wire harness side No.2
and No.3 (Green/Red)
No. 9
FUSE
(15 A)
29
GND2
JOINT
CONNECTOR 1
, and joint connector 1
12
failure (code does
MAP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
SG1
(Green/Red)
3
CKP SENSOR
16
Y/Bl
Bu
9
G/Bl G/Bl
20 18
Bl Black
Y Yellow
Bu Blue
G Green
R Red
W White
,
9
not
FUEL SYSTEM
30
PB
(White/Red)
Br Brown
O Orange
Lb Light blue
Lg
Light green
P Pink
Gr Gray
5-59