TOHATSU BFT115A Service Manual page 154

FUEL SYSTEM
DTC 22-1, 22-2 (EOP SENSOR VOLTAGE TOO LOW OR TOO HIGH)
ECM
5V
POIL
5V
VCC2
DTC 22-1 (EOP SENSOR VOLTAGE IS TOO LOW)
• When the DTC code 7-1 and 22-1 or 22-2 are
indicated at the same time, the power line (VCC2) is
open.
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the EOP sensor 3P connector
ECM connector A
and joint connector 2
them.
Clear the DTC (page 5-6).
• Continue the procedure if the DTC does not
clear.
Turn the combination switch ON.
Measure the EOP sensor voltage using the HDS.
Is the measurement within 0.30 – 4.70 V?
YES
NO
2. EOP sensor signal line short circuit inspection
Turn the combination switch OFF and disconnect
the EOP sensor 3P connector
Turn the combination switch ON.
Measure the voltage between the EOP sensor 3P
connector
(Yellow/Red) terminal and engine ground.
Is the measurement within 4.75 – 5.25 V?
YES
NO
5-36
12
Y/R
Br/W
SG2 G/R
13
JOINT
CONNECTOR 2
, ECM connector B
12
, and then reconnect
28
– Temporary failure
reappear)
– GO TO STEP 2.
main wire harness side No.2
7
– GO TO STEP 3.
– Repair short in the Yellow/Red wire. If the
main wire harness is normal, replace the
ECM with a new one and recheck.
G/R G/R
28
21 17
,
7
,
13
(code does not
.
7
EOP
SENSOR
7
Br/W
Y/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
EOP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
7
POIL
(Yellow/Red)