Suzuki DF70A - Self-Diagnostic Code 2 - 1 TPS

1A-32 Engine General Information and Diagnosis:
Self-Diagnostic Code “2 – 1” TPS (Throttle Position Sensor)
Z9J0111104012
Wiring Diagram
Troubleshooting
For step 1
1. TPS
ECM
R
B/W
Br/Y
C
P
U
5V
1
I9J011110059-01
Step Action Yes No
1 1) With the ignition switch “OFF”, disconnect the TPS
connector.
2) With the ignition switch “ON”, check the voltage at the
“R” wire terminal of the TPS connector.
Is the voltage approx. 4 – 5 V?
Go to step 2. • “R” wire open, “R”
wire shorted to
ground circuit or poor
connection.
• If the wiring and
connection is OK,
substitute a known-
good ECM and
recheck.
2 1) Check the TPS output voltage change.
Refer to “TPS Inspection” in Section 1C (Page 1C-15)
Is it in good condition?
Substitute a known-
good ECM and recheck.
• Faulty TPS.
• “R” wire shorted to
“Br/Y” wire, “B/W”
wire open, poor “B/
W” wire connection,
poor “Br/Y” wire
connection, “Br/Y”
wire open or poor
TPS connection.
• If the wiring and
connection is OK,
intermittent trouble or
a faulty ECM may be
the cause.
R
Br/Y
B/W
I9J011110060-01
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