Self-Diagnostic Code "2 - 2" Air Intake System - Suzuki DF70A Service Manual

Self-Diagnostic Code "2 – 2" Air Intake System
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 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?
3 1) Check the MAP sensor, IAC system and intake manifold
(system) for air leakage.
Is the result OK?
1
R
Br/Y
B/W
1. TPS
Action
For step 1
B/W
Br/Y
Engine General Information and Diagnosis:
ECM
5V
C
P
U
I9J011110057-01
Yes
Go to step 2.
Go to step 3.
Intermittent trouble or
faulty ECM. Substitute a
known-good ECM and
recheck.
R
I9J011110058-01
1A-27
Z9J0111104008
No
• "R" wire open, "R"
wire shorted to
ground circuit or poor
wire connection.
• If the wiring and
connection is OK,
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.
Faulty air intake system.