TOHATSU BFT115A Service Manual page 162

FUEL SYSTEM
DTC 48-5, 48-6, 48-7 (ABNORMAL A/F SENSOR CURRENT)
ECM
AFHT
AFC
AFV
DTC 48-5 (OPEN CIRCUIT IN A/F SENSOR WIRE
(AFV/AFC))
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the A/F sensor 4P connector
ECM connector A
Clear the DTC (page 5-6).
• Continue the procedure if the DTC does not
clear.
Start the engine and let it run at 3,000 min
5 minutes or more under no load until the engine
temperature is over 85 °C (185 °F).
Then run the engine at 3,000 min
minute.
Recheck the DTC with the HDS.
Does the DTC 48-5 appear?
YES
NO
5-44
FROM
FUSE/RELAY
JUNCTION BOX
12
Bl/W
Bl/Y
W/Bl
, and then reconnect them.
12
– GO TO STEP 2.
– Temporary failure (code
reappear)
3
W
Bl/W
Bl/Y Bu
W/Bl
Bl Black
Y Yellow
Bu Blue
G Green
R Red
W White
and
3
-1 (rpm) for
-1
(rpm) for 1
does not
A/F SENSOR
BI
BI
W
Br Brown
O Orange
Lb Light blue
Lg
Light green
P Pink
Gr Gray