Suzuki DL650 Service Manual page 184

4-24 FI SYSTEM DIAGNOSIS
Step2
1) Disconnect the CKP sensor coupler
2) Crank the engine a few seconds with the starter motor, and
measure the CKP sensor peak voltage at the coupler.
CKP sensor peak voltage: 3.7 V and more
(@ White
-
@
Green)
3) Repeat the above test procedure a few times and measure
the highest peak voltage.
If OK, then measure the CKP sensor peak voltage at the
ECM terminals. (@
-
@)
09900-25008: Multi circuit tester set
g !
Tester knob indication: voltage (--)
Is the voltage OK?
YES
NO
BIW or White wire open or shorted to ground, or
poor
@ I
or
O D
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.
Loose or poor contacts on the CKP sensor cou-
pler or ECM coupler.
Re~lace the CKP sensor with a new one.