TOHATSU BFT115A Service Manual page 176

FUEL SYSTEM
MIL BLINKS 3 (MAP SENSOR)
ECM
5V
5V
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the MAP sensor 3P connector
ECM connector A
13
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 3?
YES
NO
2. MAP sensor power line open circuit inspection
Turn the combination switch OFF and disconnect
the MAP sensor 3P connector
Turn the combination switch ON.
Measure the voltage between the MAP sensor 3P
connector
(Brown/Yellow) terminal and engine ground.
Is the measurement within 4.75 – 5.25 V?
YES
NO
5-58
12
PB W/R
VCC1 Br/Y
SG1 G/R
13
, and ECM connector B
12
, and then reconnect them.
– GO TO STEP 2.
– Temporary failure (code
reappear)
30
main wire harness side No.1
30
– GO TO STEP 3.
– Repair open in the Brown/Yellow wire. If
the main wire harness is normal, replace
the ECM with a new one and recheck.
,
30
does not
.
MAP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
MAP
SENSOR
30
Br/Y
W/R
G/R
Bl Black Br Brown
Y Yellow O Orange
Bu Blue Lb Light blue
Lg
G Green Light green
R Red P Pink
W White Gr Gray
30
VCC1
(Brown/Yellow)