Suzuki VZR1800 2007, Service Manual

Page: 289 / 609

5-88 FI SYSTEM DIAGNOSIS
Step 4
1) Turn the ignition switch OFF.
2) Connect the position sensor coupler.
3) Measure the position sensor output voltage at fully close posi-
tion and fully open position.
4) Insert the needle pointed probes to the back side of the posi-
tion sensor lead wire coupler. (
+
Yellow –
-
B/Br)
5) Disconnect the EXCVA motor lead wire coupler.
6) To set the EXCV to fully close position, apply 12 volts to
A
and
B
terminals.
Positive wire –
A
(Pink wire) terminal
Negative wire –
B
(Gray wire) terminal
7) Turn the ignition switch ON.
8) Measure the position sensor output voltage at fully close posi-
tion.
9) Then, to set the EXCV to fully open position, apply 12 volts to
B
and
A
terminals.
Positive wire –
B
(Gray wire) terminal
Negative wire –
A
(Pink wire) terminal
10)Measure the position sensor output voltage at fully open
position.
$
Position sensor output voltage
EXCV is fully close: 0.5 – 1.5 V
EXCV is fully open: 3.5 – 4.5 V
(
+
Yellow –
-
B/Br)
!
09900-25008: Multi circuit tester set
09900-25009: Needle pointed probe set
&
Tester knob indication: Voltage (
'
)
Is the voltage OK?
11)After repairing the trouble, clear the DTC using SDS tool.
(
#
5-26)
YES
Replace the ECM with a known good one, and
inspect it again.
NO Go to Step 5.
4
V
4
12 V
4
12 V