Suzuki VLR1800 Service Manual page 157

Troubleshooting
CAUTION
!
When using the multi-circuit tester, do not strongly touch the terminal of the ECM coupler with a
needle pointed tester probe to prevent terminal damage.
NOTE
After repairing the trouble, clear the DTC using SDS tool. Refer to "Use of SDS Diagnosis Reset
Procedures (Page 1A-14)".
When indicating C44/P0156 for O2 sensor #2 / When indicating C64/P0130 for O2 sensor #1 (Use of mode
select switch)
Step
1 1) Turn the ignition switch OFF.
2) Remove the right frame cover (All models) and EVAP
canister (For E-33). Refer to "Exterior Parts Removal
and Installation in Section 9D (Page 9D-3)" (All models)
and "Evaporative Emission Control System Removal
and Installation (Only for E-33) in Section 1B (Page 1B-
13)".
3) Check the O2 sensor for loose or poor contacts.
If OK, then check the O2 sensor lead wire continuity.
Action
O2 sensor #2
O2 sensor #1
Engine General Information and Diagnosis:
Yes
Go to Step 2.
I822H1110097-01
I822H1110098-01
1A-88
No
W/G or W/Bl wire
shorted to the power
source, or W/G and W/
Bl or B/Br wire open.