TOHATSU BFT75A Service Manual page 160

dummyhead dummyhead
DTC 0-2, 0-5, 0-8
(INTERNAL FAILURE OF ECM)
1. Reproduction test
Turn the combination switch ON and wait for more
than one second.
Clear the DTC (page 5-5).
• Continue the procedure if the DTC does not
clear.
Start the engine and recheck the DTC.
Does the DTC 0-2, 0-5, 0-8 appear?
YES
NO
DTC 1-4 (HO2S FAILURE)
ECM
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the HO2S 4P connector
connector A
connector 2
Clear the DTC (page 5-5).
• 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.
Let the engine idle for 1 minute or more.
Check the DTC using the Dr.H.
Does the DTC 1-4 appear?
YES
NO
– Replace the ECM with a new one and
recheck
– Temporary failure (code
reappear)
29
O2 Bl/Y
SG2 G
28
12
21
, ECM connector B
and then reconnect them.
– GO TO STEP 2.
– Temporary failure (code does not
reappear).
does not
25
Bl/Y
G
17
JOINT
CONNECTOR 2
, ECM
, joint
-1
(rpm) for
FUEL SYSTEM
HO2S
Bl
Gr
Bl BLACK Br BROWN
Y YELLOW O ORANGE
Bu BLUE Lb LIGHT BLUE
G GREEN Lg LIGHT GREEN
R RED P PINK
W WHITE Gr GRAY
5-19