Suzuki Intruder VZ1500 Service Manual page 117

Step
2 9) Measure the output voltage between the Dg wire and
ground.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
(B): 09900–25009 (Needle pointed probe set)
Tester knob indication
Voltage ( )
IAT sensor output voltage
0.1 – 4.6 V
((+) terminal: Dg – (–) terminal: Ground)
(B)
Are the continuity and voltage OK?
3 1) Turn the ignition switch OFF.
2) Disconnect the IAT sensor coupler.
3) Measure the IAT sensor resistance.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Resistance (Ω)
IAT sensor resistance
Approx. 2.5 kΩ at 20 °C (68 °F)
(Terminal – Terminal)
NOTE
IAT sensor resistance measurement method is
the same way as that of the ECT sensor. Refer to
"ECT Sensor Inspection in Section 1C (Page 1C-
5)".
Is the resistance OK?
Action
(A)
I940H1110038-02
(A)
I940H1110039-01
Engine General Information and Diagnosis:
Yes
Go to Step 2.
• Dg or B/Br wire open
or shorted to ground,
or poor "2" or "12"
connection.
• If wire and
connection are OK,
intermittent trouble or
faulty ECM.
• Recheck each
terminal and wire
harness for open
circuit and poor
connection.
• Replace the ECM
with a known good
one, and inspect it
again. Refer to "ECM
Removal and
Installation in Section
1C (Page 1C-1)".
1A-50
No
• Dg wire shorted to
ground.
• If wire is OK, go to
Step 2.
Replace the IAT sensor
with a new one. Refer to
"IAP Sensor Removal
and Installation in
Section 1C (Page 1C-
2)".