Suzuki VZR1800 2007, Service Manual

Page: 234 / 609

FI SYSTEM DIAGNOSIS 5-33
6) If OK, then check the continuity between each terminal and
ground.
$
CKP sensor continuity:
∞ Ω
(Infinity)
(Blue – Ground)
(Green – Ground)
!
09900-25008: Multi-circuit tester set
%
Tester knob indication: Resistance (
Ω
)
Are the resistance and continuity OK?
7) After repairing the trouble, clear the DTC using SDS tool.
(
#
5-26)
Step 2
1) Crank the engine a few seconds with the starter motor, and
measure the CKP sensor peak voltage at the coupler.
2) Repeat the above test procedure a few times and measure
the highest peak voltage.
$
CKP sensor peak voltage: 1.5 V and more
(
-
Green –
+
Blue)
1
Peak volt adaptor
!
09900-25008: Multi-circuit tester set
&
Tester knob indication: Voltage (
'
)
.
Is the voltage OK?
3) After repairing the trouble, clear the DTC using SDS tool.
(
#
5-26)
YES Go to step 2.
NO Replace the CKP sensor with a new one.
YES
• G/W or G/BI wire open or shorted to ground.
• Loose or poor contacts on the CKP sensor cou-
pler or ECM coupler (terminal
D
or
U
).
• 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
• Inspect that metal particles or foreign material
stuck on the CKP sensor and rotor tip.
• If there are no metal particles and foreign mate-
rial, then replace the CKP sensor with a new
one.
1
V
2
ECM coupler (Harness side)
2
(Black) (Gray)