Self-Diagnostic Code "3 - 2" Map Sensor 2 - Suzuki DF70A Service Manual

1A-28 Engine General Information and Diagnosis:
Self-Diagnostic Code "3 – 2" MAP Sensor 2
Wiring Diagram
1
2
Troubleshooting
Step
1 1) With the ignition switch "OFF", disconnect the MAP
sensor connector.
2) With the ignition switch "ON", check the voltage at the
"R" wire terminal of the MAP sensor connector.
Is the voltage approx 4 – 5 V?
2 1) Check the MAP sensor output voltage change.
Refer to "MAP Sensor Output Voltage Inspection" in
Section 1C (Page 1C-13).
Is it in good condition?
3 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?
R
Br/Y
B/W
W
B/W
R
B
1. TPS
Action
ECM
+ 5V
5V
2. MAP sensor
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Z9J0111104009
5V
C
P
U
I9J011110029-03
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 MAP sensor.
• "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.