Suzuki DF 90 Service Manual page 95

CHART6 : SELF-DIAGNOSTIC CODE "1-4"
START
< Ignition switch "OFF" >
Check cylinder temp. sensor resistance.
Is result OK? (See page 3-38)
YES
Possible cause :
• ECM failure
• Wire continuity / connection failure
CHART 7 : SELF-DIAGNOSTIC CODE "2-3"
START
< Ignition switch "OFF" >
Check IAT sensor resistance.
Is result OK? (See page 3-38)
YES
Possible cause :
• ECM failure
• Wire continuity / connection failure
CHART8 : SELF-DIAGNOSTIC CODE "3-2"
START
< Ignition switch "ON" >
Check MAP sensor output voltage
change.
Is result OK? (See page 3-43)
YES
Possible cause :
• Clogged pressure detect passage
• ECM failure
• Wire continuity / connection failure
NO
Cylinder temp. sensor failure
NO
IAT sensor failure
NO
MAP sensor failure
ENGINE CONTROL SYSTEM 3-47