Suzuki AN400 Service Manual page 317

• Remove the front box. (!7-14)
• Disconnect the CKP sensor coupler 1 and connect the multi
circuit tester with the peak volt adaptor.
+ Probe: Green lead wire
- probe: Blue 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: 4.5 V and more
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 CKP sensor must be replaced and re-checked.
CKP SENSOR RESISTANCE INSPECTION
• Remove the front box. (!7-14)
• Disconnect the CKP sensor coupler.
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 : 180 – 288 Ω Ω Ω Ω (Green – Blue)
: ∞ ∞ ∞ ∞ Ω Ω Ω Ω (Green – Ground)
ELECTRICAL SYSTEM
CKP Sensor coupler
Bl
G
CKP sensor
CKP Sensor
coupler
CKP sensor
8-25
Peak
volt
adaptor