Ckp Sensor Inspection - Suzuki VLR1800 Service Manual

Tester knob indication
Resistance (Ω)
Ignition coil resistance
Primary: 1.8 – 3.0 Ω ((+) terminal – (–) terminal)
Secondary: 16 – 26 kΩ (Plug cap – (–) terminal)

CKP Sensor Inspection

Refer to "Electrical Components Location in Section 0A
(Page 0A-7)".
CKP Sensor Peak Voltage
1) Remove the left frame side cover. Refer to "Exterior
Parts Removal and Installation in Section 9D
(Page 9D-3)".
2) Remove the left frame lower side cover. Refer
to"Exterior Parts Removal and Installation in Section
9D (Page 9D-3)".
3) Disconnect the CKP sensor lead wire coupler (1)
and connect the multi-circuit tester with the peak volt
adaptor.
NOTE
Be sure that all of the couplers are connected
properly and the battery is fully-charged.
4) Connect the multi-circuit tester with the peak volt
adaptor as follows:
CAUTION
!
Before using the multi-circuit tester and peak
voltage adaptor, refer to the appropriate
instruction manual.
I822H1180018-03
B822H11806004
1
I822H1180019-03
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication: Voltage (
(+) Probe
CKP sensor
3
2. CKP sensor coupler
3. CKP sensor
5) Measure the CKP sensor peak voltage in the
following procedures:
a) Shift the transmission into neutral, turn the
ignition switch ON and grasp the clutch lever.
b) Press the starter button and allow the engine to
crank for a few seconds, and then measure the
CKP sensor peak voltage.
6) Repeat the b) procedure several times and measure
the highest CKP sensor peak voltage.
CKP sensor peak voltage
1.5 V and more (G – B)
7) If the peak voltage is within the specification, check
the continuity between the CKP sensor coupler and
ECM coupler.
CAUTION
!
Normally, use the needle pointed probe to the
backside of the lead wire coupler to prevent
the terminal bend and terminal alignment.
8) After measuring the CKP sensor peak voltage,
connect the CKP sensor coupler.
CKP Sensor Resistance
1) Disconnect the CKP sensor coupler (1).
Ignition System: 1H-9
)
(–) Probe
BI G
G
2
BI
4
(A)
I822H1180020-01
4. Peak voltage adaptor
1
I822H1180021-03