Suzuki VL1500K5 Supplementary Service Manual page 79

78 VL1500K5 ('05-MODEL)
Step 1 (When indicating P1654-H:)
1) Remove the air cleaner box. (!Page 103)
2) Turn the ignition switch OFF.
3) Check the STP sensor coupler for loose or poor contacts.
If OK, then check the STP sensor lead wire continuity.
4) Disconnect the STP sensor coupler.
5) Check the continuity between Y/W wire B and Red wire A.
If the sound is not heard from the tester, the circuit condition is
OK.
6) Remove the left frame upper cover (!VL1500 Service
Manual 6-3) and disconnect the ECM coupler.
7) Check the continuity between Y/W wire B and terminal 4.
8) Also, check the continuity between B/Br wire C and terminal D.
" STPS lead wire continuity: Continuity (,)
# 09900-25008: Multi-circuit tester set
09900-25009: Needle pointed probe set
- Tester knob indication: Continuity test (,)
Is the continuity OK?
YES Go to Step 2.
NO Y/W wire shorted to VCC, or B/Br wire open.
9) After repairing the trouble, clear the DTC using SDS tool.
(!Page 42)
1
1
1
ECM coupler (Harness side)
!
!