Suzuki GSX-R1000 2007, Service Manual

Page: 216 / 549

FI SYSTEM DIAGNOSIS 4-61
Step 3
1) Remove the AP sensor.
2) Connect the vacuum pump gauge to the vacuum port of the
AP sensor.
Arrange 3 new 1.5 V batteries in series
(check that total
voltage is 4.5 – 5.0 V) and connect terminal to the ground
terminal and terminal to the VCC terminal .
3) Check the voltage between Vout and ground. Also, check
if voltage reduces when vacuum is applied up to 53 kPa (400
mmHg) by using vacuum pump gauge. (
Below)
\
09917-47011: Vacuum pump gauge
09900-25008: Multi-circuit tester set
W
Tester knob indication: Voltage ( )
Is the voltage OK?
4) After repairing the trouble, clear the DTC using SDS tool.
( 4-28)
Output voltage (VCC voltage 4.5 – 5.0 V, ambient temp. 20 –
30 °C, 68 – 86 °F)
YES
• R, G/Y or B/Br wire open or shorted to ground,
or poor ,
+
or
:
connection.
• 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.
NO
If check result is not satisfactory, replace AP sen-
sor with a new one.
ALTITUDE
(Reference)
ATMOSPHERIC
PRESSURE
OUTPUT
VOLTAGE
(ft) (m) (mmHg) kPa (V)
0
2 000
0
610
760
707
100
94
3.1 – 3.6
2 001
5 000
611
1 524
707
634
94
85
2.8 – 3.4
5 001
8 000
1 524
2 438
634
567
85
76
2.6 – 3.1
8 001
10 000
2 439
3 048
567
526
76
70
2.4 – 2.9
V
3
ECM coupler (Harness side)
3
(Black) (Gray)