Suzuki VLR1800, Service Manual

Page: 111 / 624

Engine General Information and Diagnosis: 1A-42
P0120-L (Use of SDS)
Step Action Yes No
1 1) Turn the ignition switch OFF.
2) Remove the right air cleaner box. Refer to “Air Cleaner
Element Removal and Installation in Section 1D
(Page 1D-6)”.
3) Check the TP sensor coupler (1) for loose or poor
contacts.
If OK, then check the TP sensor lead wire continuity.
4) Disconnect the TP sensor coupler.
5) Check the continuity between the P/B wire and ground.
Also, check the continuity between the P/B wire and B/Br
wire.
If the sound is not heard from the tester, the circuit
condition is OK.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Continuity (
)
Go to Step 2. R and P/B wire open, or
P/B wire shorted to
ground.
1
I822H1110029-01
(A)
I823H1110029-03