Suzuki 2005 DL650K5, Service Manual

Page: 187 / 701

FI SYSTEM DIAGNOSIS 4-23
“C12” CKP SENSOR CIRCUIT MALFUNCTION
INSPECTION
Step1
1) Turn the ignition switch OFF.
2) Check the CKP sensor coupler
1
for loose or poor contacts.
If OK, then measure the CKP sensor resistance.
3) Disconnect the CKP sensor coupler and measure the resis-
tance.
%
CKP sensor resistance: 130 – 240
Ω
(White – Green)
4) If OK, then check the continuity between each terminal and
ground.
%
CKP sensor continuity:
∞ Ω
(Infinity)
(White – Ground)
(Green – Ground)
!
09900-25008: Multi circuit tester set
&
Tester knob indication: Resistance (
Ω
)
Are the resistance and continuity OK?
DETECTED CONDITION POSSIBLE CAUSE
The signal does not reach ECM for 3 sec. and more,
after receiving the IAP signal. • Metal particles or foreign materiel being attached
on the CKP sensor and rotor tip.
• CKP sensor circuit open or short.
• CKP sensor malfunction.
• ECM malfunction.
1
1
YES Go to Step 2.
NO Replace the CKP sensor with a new one.
1
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