Self-Diagnostic Code "2 - 1" Tps - Suzuki DF70A Service Manual

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