Suzuki kq500 Service Manual page 105

C14 (Use of mode select switch)
Step
1 1) Remove the left side cover. Refer to "Front Side
Exterior Parts Removal and Installation: in Section
9D".
2) Turn the ignition switch OFF.
3) Check the TP sensor coupler for loose or poor contacts.
If OK, then check the TP sensor input voltage.
4) Disconnect the TP sensor coupler.
5) Turn the ignition switch ON.
6) Insert the pointed probes to the lead wire coupler.
7) Measure the input voltage at the R wire "A" and ground.
If OK, then measure the input voltage at the R wire "A"
and B/Br wire "C".
Special tool
(A): 09900–25008 (Multi-circuit tester set)
(B): 09900–25009 (Needle pointed probe set)
Tester knob indication
Voltage ( )
TP sensor input voltage
4.5 – 5.5 V
((+) terminal: R – (–) terminal: Ground, (+) terminal: R
– (–) terminal: B/Br)
Is the continuity OK?
Action
I931H1110028-01
(A)
(B)
I718H1110180-03
Engine General Information and Diagnosis:
Yes
Go to Step 2.
1A-34
No
• Loose or poor
contacts on the ECM
coupler.
• Open or short circuit
in the R wire or B/Br
wire.