Suzuki AN650 2002 Service Manual page 387

10-22 ELECTRICAL SYSTEM
• Turn the ignition switch to the "ON" position.
• Pull the front or rear brake.
• Press the starter button and allow the engine to crank for a
few seconds, and then measure the CKP sensor peak volt-
age.
• Repeat the above procedure a few times and measure the
highest peak voltage.
Tester knob indication: Voltage (
CKP sensor peak voltage: More than 2.0 V
If the peak voltage is lower than the specified values, check the
peak voltage at the CKP sensor lead wire coupler.
• Remove the maintenance lid. (
• Dicsonnect the CKP sensor lead wire coupler and connect the
multi circuit tester with the peak volt adaptor.
+ Probe: Blue lead wire
- Probe: Green lead wire
Measure the CKP sensor peak voltage at the CKP sensor lead
wire coupler, in the same manner as on the ECM coupler.
Tester knob indication: Voltage (
CKP sensor peak voltage: More than 2.0 V
If the peak voltage on the CKP sensor lead wire coupler is ok but
on the ECM coupler is out of specification, the wire harness
must be replaced. If both peak voltages are out of specification,
the generator must be replaced and re-checked.
CKP SENSOR RESISTANCE
Measure the resistance between the lead wires and ground. If
the resistance is not specified value, the CKP sensor must be
replaced.
09900-25008: Multi circuit tester set
Tester knob indication: Resistance (Ω Ω Ω Ω )
CKP sensor resistance: 150 – 300 Ω Ω Ω Ω (Green – Blue)
• Connect the CKP sensor coupler and install the maintenance
lid.
)
9-13)
)
: ∞ Ω Ω Ω Ω (Green – Ground)
ECM
CKP sensor
coupler
coupler
W/G G/W
W W
CKP sensor
CKP sensor
coupler
G
BI
CKP sensor
CKP sensor
coupler
CKP sensor
Peak
volt
adaptor
Peak
volt
adaptor