Suzuki DF300 Service Manual page 161

3-102 ENGINE CONTROL SYSTEM
CHART 7: SELF-DIAGNOSTIC CODE "3-7" Trim sensor
START
<Main switch "ON">
Check ECM "44" terminal voltage.
Is result OK? (See page 3-59.)
YES
<Main switch "ON">
Check ECM "17" terminal voltage.
Is result OK? (See page 3-59.)
YES
Possible cause:
• ECM failure
• Wire continuity/connection failure
CHART 8: SELF-DIAGNOSTIC CODE "2-1" Throttle position sensor
START
<Main switch "OFF">
Check throttle position sensor output
voltage change.
Is result OK? (See page 3-83.)
YES
Possible cause:
• ECM failure
• Wire continuity/connection failure
CHART 9: SELF-DIAGNOSTIC CODE "1-2" Shift position sensor
START
<Main switch "ON">
Check shift position sensor output voltage
change.
Is result OK? (See page 3-74.)
YES
Possible cause:
• ECM failure
• Wire continuity/connection failure
NO
• ECM failure
• Wire continuity/connection failure
NO
Trim sensor failure
NO
Throttle position sensor failure
NO
• Shift position sensor failure
• Wire continuity/connection failure