Suzuki DF 40 - Page 98

3-43 ENGINE CONTROL SYSTEM
CHART6 : SELF-DIAGNOSTIC CODE “1-4”
START
< Ignition switch “OFF” >
Check cylinder temp. sensor resistance.
Is result OK? (See page 3-35.)
Possible cause :
• ECM failure
• Wire continuity/connection failure
YES
NO
CHART 7 : SELF-DIAGNOSTIC CODE “2-3”
START
< Ignition switch “OFF” >
Check IAT sensor resistance.
Is result OK? (See page 3-35.)
Possible cause :
• ECM failure
• Wire continuity/connection failure
YES
IAT sensor failure
NO
CHART8 : SELF-DIAGNOSTIC CODE “3-2”
START
< Individual check >
Check MAP sensor hose is in good
condition/connection.
Is result OK?
< Ignition switch “ON” >
Check MAP sensor output voltage
change.
Is result OK? (See page 3-39.)
YES
YES
MAP sensor hose failure
NO
MAP sensor failure
NO
Cylinder temp. sensor failure
Possible cause :
• Gas filter failure (clogged, etc.)
• ECM failure
• Wire continuity/connection failure