Suzuki Intruder VZ1500 Service Manual page 122

1A-55 Engine General Information and Diagnosis:
P1651-L (Use of SDS)
Step
1 1) Turn the ignition switch OFF.
2) Remove the TO sensor. Refer to "TO Sensor Removal
and Installation in Section 1C (Page 1C-5)".
3) Check the TO sensor coupler (1) for loose or poor
contacts.
If OK, then check the TO sensor lead wire continuity.
4) Disconnect the TO sensor coupler.
5) Check the continuity between the Br wire "A" and
ground.
Also, check the continuity between the Br wire "A" and B/
Br wire "B".
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 (
"A"
6) Disconnect the ECM coupler. Refer to "ECM Removal
and Installation in Section 1C (Page 1C-1)".
7) Insert the needle pointed probes to the lead wire coupler.
Action
1
)
"B"
Yes
Go to Step 2.
I940H1110041-01
(A)
I822H1110052-01
No
R or Br wire open, or Br
wire shorted to ground.