Suzuki SV650 Supplementary Service Manual page 27

26 SV650K7/SK7/AK7/SAK7 ('07-MODEL)
Step 3
1) Turn the ignition switch OFF.
2) Remove the IAP sensor.
3) Connect the vacuum pump gauge to the vacuum port of the
IAP sensor.
4) Arrange 3 new 1.5 V batteries in series 1 (check that total -
voltage is 4.5 – 5.0 V) and connect - terminal to the ground -
terminal 2 and + terminal to the Vcc terminal 3.
5) Check the voltage between Vout 4 and ground. Also, check if
voltage reduces when vacuum is applied up to 400 mmHg by
using vacuum pump gauge. (#below)
" 09917-47011: Vacuum pump gauge
09900-25008: Multi-circuit tester set
' Tester knob indication: Voltage (()
Is the voltage OK?
• G/B, R or B/Br wire open or shorted to ground,
or poor 3, 5 or B connection.
(Front cylinder side)
• R, B/Br or G/Y wire open or shorted to ground,
or poor 5, B or L connection.
(Rear cylinder side)
YES
• If wire and connection are OK, intermittent trou-
ble 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.
If check result is not satisfactory, replace the IAP
NO
sensor with a new one.
Output voltage (Vcc voltage 4.5 – 5.0 V, ambient temp. 20 –
30 °C, 68 – 86 °F)
ALTITUDE
(Reference)
(ft) (m)
0 0
 
2 000 610
2 001 611
 
5 000 1 524
5 001 1 525
 
8 000 2 438
8 001 2 439
 
10 000 3 048
ATMOSPHERIC
PRESSURE
(mmHg) kPa
760 100
 
707 94
707 94
 
634 85
634 85
 
567 76
567 76
 
526 70
3
3
OUTPUT
VOLTAGE
(V)
3.4 – 4.0
3.0 – 3.7
2.6 – 3.4
2.4 – 3.1
ECM coupler (Harness side)